The mother of Muhammad Musallam, an Israeli Arab held by Islamic State in Syria as an alleged spy, weeps as she holds his photograph in her East Jerusalem home February 12, 2015. 
 
 BEIRUT A video posted online by Islamic State militants on Tuesday showed a boy fatally shooting Muhammad Musallam, an Israeli Arab accused by the group of having signed up as a jihadi to spy for Israel's intelligence service. 
 
 The video, published by the group's Furqan media outlet, showed Musallam, 19, sitting in a room wearing an orange jumpsuit, talking about how he had been recruited and trained by Mossad. He said his father and elder brother had encouraged him. 
 
 After that, it showed Musallam being escorted to a field and then being shot in the head by a boy, described by an older, French-speaking fighter as one of the "cubs of the caliphate". 
 
 Reuters could not immediately verify the authenticity of the footage, which also appeared on Twitter feeds used by Islamic State supporters. 
 
 Israeli security officials said they were aware of the video but could not confirm that it was authentic. 
 
 The video, which was about 13 minutes long, showed Musallam on his knees as he listened to the older fighter delivering the verdict in French. 
 
 Then the boy, wearing a military uniform and armed with a pistol, stands face to face with Musallam and fires one bullet into his forehead. After Musallam collapsed, the child shot him three more times and chanted "Allahu Akbar!" (God is greatest). 
 
 In the video, Musallam repeated what he had said last month in an interview published by the group's English language magazine Dabiq, in which he said he had joined Islamic State to report to the Israelis on weapons caches, bases and Palestinian recruits. Israel and his family denied that he was an Israeli spy. 
 
 "I tell my father and my son: Repent to God. I say to the spies who spy on Islamic State: You will not be successful, they will expose you," Musallam said in the latest video, in Arabic. 
 
 An Israeli security official had said Musallam went to Syria to fight for Islamic State in October last year. 
 
 Musallam's father has denied his son was a spy, saying a month ago that his son had gone missing while on a tourist trip to Turkey. 
 
 Said Musallam and the youth's mother, Um Ahmad, wept at their home in East Jerusalem when they learned of his death. Clutching her son's photograph, Um Ahmad told reporters: "A spy of 19? How is that possible? Why would he have gone there if he were a spy?" 
 
 Said Musallam said his son had been trying to return home when he was captured. He accused the militants of forcing his son to say he was a spy before killing him just for show. 
 
 "Mohammad was told by them to say about himself that he works for the Israelis," Said Musallam said. "They took him as a victim, only to show the world, so the world would be afraid of them." 
 
 (Reporting by Mariam Karouny and by Ali Abdellati in Cairo; Editing by Kevin Liffey and Ken Wills) ||||| Image copyright AFP Image caption Mohammed Musallam's parents said he had he left for Syria four months ago without telling them 
 
 Islamic State (IS) militants have posted a video online which appears to show a young boy shooting dead an Israeli Arab prisoner. 
 
 The man, identified as Mohammed Said Ismail Musallam, was accused by IS of working for Israel's Mossad foreign intelligence service. 
 
 The 19-year-old left his home in East Jerusalem for Turkey last year, apparently intending to fight in Syria. 
 
 Israeli officials and Mr Musallam's family denied he was an Israeli spy. 
 
 The video footage has not been independently verified and Israeli officials said they could not confirm its authenticity. 
 
 'Own initiative' 
 
 Mr Musallam's family said he had left for Turkey four months ago without telling them. Soon after his departure, he told his brother that he planned to join IS in Syria. 
 
 A spokesman for the Shin Beth security service also told the AFP news agency that he had left home "on his own initiative". 
 
 At the scene: Yolande Knell, BBC News, East Jerusalem 
 
 Comforted by her remaining three sons, Umm Ahmed sits weeping for 19-year-old Mohammed Musallam. 
 
 She recalls her shock when she discovered that he had run away to join Islamic State fighters in northern Syria. "They recruited him through the internet," she says. "They told him: 'Come and we'll give you a house, money, you can get married - we have beautiful girls.'" 
 
 By the time Mohammed contacted his family from Raqqa late last year, the clean-shaven teenager had grown a beard and was carrying a Kalashnikov rifle. But his father says he had become disillusioned and wanted to return home. 
 
 Said Musallam tells me that Mohammed, an Israeli citizen, tried to escape but was caught and accused of being an Israeli spy. 
 
 "There was no way they were going to let him go," he says. "He'd been there for three months and seen their weapons. They said: 'He betrayed us, we'll ruin his reputation.' And that's what they did." 
 
 In February, the IS magazine Dabiq carried a long interview with Mr Musallam which contained what purported to be a confession that he had been sent by Israel to infiltrate the jihadist group. 
 
 The BBC's Kevin Connolly in Jerusalem says the article gave sketchy details about his alleged training and mission, but its publication was a clear signal that he had fallen foul of the group and was in clear danger. 
 
 Image copyright AFP Image caption Mohammed Musallam sent his family a photo of himself dressed in military fatigues, holding a rifle 
 
 On Tuesday evening, Islamic State's Furqan media outlet published a 13-minute video showing a young man, identified as Mr Musallam, sitting in a room wearing an orange jumpsuit, talking about how he was recruited and trained by Israeli intelligence. 
 
 He is later shown kneeling in an empty field, facing the camera. Behind him stand two figures in camouflage fatigues, one of whom appears to be a boy. 
 
 The boy appears to shoot the kneeling figure in the head with a handgun and then to fire further shots into the body. 
 
 The video then carries a warning from an older, French-speaking militant aimed at the Jewish people. 
 
 French media and IS supporters identified the older militant as Sabri Essid. He is reportedly a half-brother of Mohamed Merah, who killed three unarmed French soldiers, a rabbi and three small children at a Jewish school in France in 2012. ||||| Story highlights A video claims to show the killing of Mohamed Said Ismail Musallam 
 
 Musallam's family says ISIS recruited him 
 
 ISIS claims the 19-year-old is an Israeli spy 
 
 Jerusalem (CNN) A newly released ISIS video shows a child shooting a man the group claims is an Israeli spy. 
 
 The video identifies the man as 19-year-old Mohamed Said Ismail Musallam, an Israeli citizen of Palestinian descent. 
 
 In the video, ISIS shows Musallam's Israeli passport and claims he's an agent sent to infiltrate the group. The 19-year-old's family told CNN Tuesday that he had no ties with the Mossad, Israel's spy agency, and had, in fact, been recruited by ISIS. 
 
 "Mohamed told me and his brother that ISIS took him," according to Said Musallam, his father. "They sent him money through the Western Union. They said you will have girls, money, cars, villas, paradise, but afterwords he discovered that there is nothing." 
 
 It wasn't long before Musallam's family members didn't recognize him when they talked to him on Skype. The man they knew as a kind and funny brother and son who was once a volunteer firefighter had grown a long beard and was carrying a rifle. 
 
 Read More ||||| Hong Kong (CNN) Beijing has vowed to bring ISIS to justice after the group said it had executed two hostages, a Chinese and a Norwegian. 
 
 ISIS said it had killed the two men, identified as Chinese national Fan Jinghui and Norwegian citizen Ole Johan Grimsgaard-Ofstad in its English-language online magazine Dabiq. 
 
 Children stand next to a burnt vehicle during clashes between Iraqi security forces and ISIS militants in Mosul on Tuesday, June 10. 
 
 Children stand next to a burnt vehicle during clashes between Iraqi security forces and ISIS militants in Mosul on Tuesday, June 10. 
 
 A Syrian rebel fighter lies on a stretcher at a makeshift hospital in Douma, Syria, on Wednesday, July 9. He was reportedly injured while fighting ISIS militants. 
 
 A Syrian rebel fighter lies on a stretcher at a makeshift hospital in Douma, Syria, on Wednesday, July 9. He was reportedly injured while fighting ISIS militants. 
 
 Thousands of Yazidi and Christian people flee Mosul on Wednesday, August 6, after the latest wave of ISIS advances. 
 
 Thousands of Yazidi and Christian people flee Mosul on Wednesday, August 6, after the latest wave of ISIS advances. 
 
 Thousands of Yazidis are escorted to safety by Kurdish Peshmerga forces and a People's Protection Unit in Mosul on Saturday, August 9. 
 
 Thousands of Yazidis are escorted to safety by Kurdish Peshmerga forces and a People's Protection Unit in Mosul on Saturday, August 9. 
 
 Aziza Hamid, a 15-year-old Iraqi girl, cries for her father while she and some other Yazidi people are flown to safety Monday, August 11, after a dramatic rescue operation at Iraq's Mount Sinjar. A CNN crew was on the flight, which took diapers, milk, water and food to the site where as many as 70,000 people were trapped by ISIS. But only a few of them were able to fly back on the helicopter with the Iraqi Air Force and Kurdish Peshmerga fighters. 
 
 Aziza Hamid, a 15-year-old Iraqi girl, cries for her father while she and some other Yazidi people are flown to safety Monday, August 11, after a dramatic rescue operation at Iraq's Mount Sinjar. A CNN crew was on the flight, which took diapers, milk, water and food to the site where as many as 70,000 people were trapped by ISIS. But only a few of them were able to fly back on the helicopter with the Iraqi Air Force and Kurdish Peshmerga fighters. 
 
 Kurdish Peshmerga fighters fire at ISIS militant positions from their position on the top of Mount Zardak, east of Mosul, Iraq, on Tuesday, September 9. 
 
 Kurdish Peshmerga fighters fire at ISIS militant positions from their position on the top of Mount Zardak, east of Mosul, Iraq, on Tuesday, September 9. 
 
 A elderly man is carried after crossing the Syria-Turkey border near Suruc on Saturday, September 20. 
 
 A elderly man is carried after crossing the Syria-Turkey border near Suruc on Saturday, September 20. 
 
 Syrian Kurds wait near a border crossing in Suruc as they wait to return to their homes in Kobani on Sunday, September 28. 
 
 Syrian Kurds wait near a border crossing in Suruc as they wait to return to their homes in Kobani on Sunday, September 28. 
 
 A Kurdish Peshmerga soldier who was wounded in a battle with ISIS is wheeled to the Zakho Emergency Hospital in Duhuk, Iraq, on Tuesday, September 30. 
 
 A Kurdish Peshmerga soldier who was wounded in a battle with ISIS is wheeled to the Zakho Emergency Hospital in Duhuk, Iraq, on Tuesday, September 30. 
 
 Alleged ISIS militants stand next to an ISIS flag atop a hill in Kobani on Monday, October 6. 
 
 Alleged ISIS militants stand next to an ISIS flag atop a hill in Kobani on Monday, October 6. 
 
 Kiymet Ergun, a Syrian Kurd, celebrates in Mursitpinar, Turkey, after an airstrike by the U.S.-led coalition in Kobani on Monday, October 13. 
 
 Kiymet Ergun, a Syrian Kurd, celebrates in Mursitpinar, Turkey, after an airstrike by the U.S.-led coalition in Kobani on Monday, October 13. 
 
 Cundi Minaz, a female Kurdish fighter, is buried in a cemetery in the southeastern Turkish town of Suruc on Tuesday, October 14. Minaz was reportedly killed during clashes with ISIS militants in nearby Kobani. 
 
 Cundi Minaz, a female Kurdish fighter, is buried in a cemetery in the southeastern Turkish town of Suruc on Tuesday, October 14. Minaz was reportedly killed during clashes with ISIS militants in nearby Kobani. 
 
 Heavy smoke rises in Kobani following an airstrike by the U.S.-led coalition on October 18. 
 
 Heavy smoke rises in Kobani following an airstrike by the U.S.-led coalition on October 18. 
 
 Kurdish fighters walk to positions as they combat ISIS forces in Kobani on Sunday, October 19. 
 
 Kurdish fighters walk to positions as they combat ISIS forces in Kobani on Sunday, October 19. 
 
 ISIS militants stand near the site of an airstrike near the Turkey-Syria border on Thursday, October 23. The United States and several Arab nations have been bombing ISIS targets in Syria to take out the militant group's ability to command, train and resupply its fighters. 
 
 ISIS militants stand near the site of an airstrike near the Turkey-Syria border on Thursday, October 23. The United States and several Arab nations have been bombing ISIS targets in Syria to take out the militant group's ability to command, train and resupply its fighters. 
 
 Iraqi special forces search a house in Jurf al-Sakhar, Iraq, on Thursday, October 30, after retaking the area from ISIS. 
 
 Iraqi special forces search a house in Jurf al-Sakhar, Iraq, on Thursday, October 30, after retaking the area from ISIS. 
 
 A picture taken from Turkey shows smoke rising after ISIS militants fired mortar shells toward an area controlled by Syrian Kurdish fighters near Kobani on Monday, November 3. 
 
 A picture taken from Turkey shows smoke rising after ISIS militants fired mortar shells toward an area controlled by Syrian Kurdish fighters near Kobani on Monday, November 3. 
 
 Fighters from the Free Syrian Army and the Kurdish People's Protection Units join forces to fight ISIS in Kobani on Wednesday, November 19. 
 
 Fighters from the Free Syrian Army and the Kurdish People's Protection Units join forces to fight ISIS in Kobani on Wednesday, November 19. 
 
 Smoke billows behind an ISIS sign during an Iraqi military operation to regain control of the town of Sadiyah, about 95 kilometers (60 miles) north of Baghdad, on Tuesday, November 25. 
 
 Smoke billows behind an ISIS sign during an Iraqi military operation to regain control of the town of Sadiyah, about 95 kilometers (60 miles) north of Baghdad, on Tuesday, November 25. 
 
 An elderly Yazidi man arrives in Kirkuk after being released by ISIS on Saturday, January 17. The militant group released about 200 Yazidis who were held captive for five months in Iraq. Almost all of the freed prisoners were in poor health and bore signs of abuse and neglect, Kurdish officials said. 
 
 An elderly Yazidi man arrives in Kirkuk after being released by ISIS on Saturday, January 17. The militant group released about 200 Yazidis who were held captive for five months in Iraq. Almost all of the freed prisoners were in poor health and bore signs of abuse and neglect, Kurdish officials said. 
 
 ISIS militants are seen through a rifle's scope during clashes with Peshmerga fighters in Mosul, Iraq, on Wednesday, January 21. 
 
 ISIS militants are seen through a rifle's scope during clashes with Peshmerga fighters in Mosul, Iraq, on Wednesday, January 21. 
 
 Junko Ishido, mother of Japanese journalist Kenji Goto, reacts during a news conference in Tokyo on Friday, January 23. ISIS would later kill Goto and another Japanese hostage, Haruna Yukawa. 
 
 Junko Ishido, mother of Japanese journalist Kenji Goto, reacts during a news conference in Tokyo on Friday, January 23. ISIS would later kill Goto and another Japanese hostage, Haruna Yukawa. 
 
 Collapsed buildings are seen in Kobani on January 27 after Kurdish forces took control of the town from ISIS. 
 
 Collapsed buildings are seen in Kobani on January 27 after Kurdish forces took control of the town from ISIS. 
 
 Kurdish people celebrate in Suruc, Turkey, near the Turkish-Syrian border, after ISIS militants were expelled from Kobani on Tuesday, January 27. 
 
 Kurdish people celebrate in Suruc, Turkey, near the Turkish-Syrian border, after ISIS militants were expelled from Kobani on Tuesday, January 27. 
 
 A Kurdish marksman looks over a destroyed area of Kobani on Friday, January 30, after the city had been liberated from the ISIS militant group. The Syrian city, also known as Ayn al-Arab, had been under assault by ISIS since mid-September. 
 
 A Kurdish marksman looks over a destroyed area of Kobani on Friday, January 30, after the city had been liberated from the ISIS militant group. The Syrian city, also known as Ayn al-Arab, had been under assault by ISIS since mid-September. 
 
 Safi al-Kasasbeh, right, receives condolences from tribal leaders at his home village near Karak, Jordan, on Wednesday, February 4. Al-Kasasbeh's son, Jordanian pilot Moath al-Kasasbeh, was burned alive in a video that was recently released by ISIS militants. Jordan is one of a handful of Middle Eastern nations taking part in the U.S.-led military coalition against ISIS. 
 
 Displaced Assyrian women who fled their homes due to ISIS attacks pray at a church on the outskirts of Damascus, Syria, on Sunday, March 1. ISIS militants abducted at least 220 Assyrians in Syria. 
 
 Displaced Assyrian women who fled their homes due to ISIS attacks pray at a church on the outskirts of Damascus, Syria, on Sunday, March 1. ISIS militants abducted at least 220 Assyrians in Syria. 
 
 Iraqi Shiite fighters cover their ears as a rocket is launched during a clash with ISIS militants in the town of Al-Alam, Iraq, on Monday, March 9. 
 
 Iraqi Shiite fighters cover their ears as a rocket is launched during a clash with ISIS militants in the town of Al-Alam, Iraq, on Monday, March 9. 
 
 The parents of 19-year-old Mohammed Musallam react at the family's home in the East Jerusalem Jewish settlement of Neve Yaakov on Tuesday, March 10. ISIS released a video purportedly showing a young boy executing Musallam, an Israeli citizen of Palestinian descent who ISIS claimed infiltrated the group in Syria to spy for the Jewish state. Musallam's family told CNN that he had no ties with the Mossad, Israel's spy agency, and had, in fact, been recruited by ISIS. 
 
 On April 1, Shiite militiamen celebrate the retaking of Tikrit, which had been under ISIS control since June. The push into Tikrit came days after U.S.-led airstrikes targeted ISIS bases around the city. 
 
 On April 1, Shiite militiamen celebrate the retaking of Tikrit, which had been under ISIS control since June. The push into Tikrit came days after U.S.-led airstrikes targeted ISIS bases around the city. 
 
 People in Tikrit inspect what used to be a palace of former President Saddam Hussein on April 3. 
 
 People in Tikrit inspect what used to be a palace of former President Saddam Hussein on April 3. 
 
 A Yazidi woman mourns for the death of her husband and children by ISIS after being released south of Kirkuk on April 8. ISIS is known for killing dozens of people at a time and carrying out public executions, crucifixions and other acts. 
 
 A Yazidi woman mourns for the death of her husband and children by ISIS after being released south of Kirkuk on April 8. ISIS is known for killing dozens of people at a time and carrying out public executions, crucifixions and other acts. 
 
 Kurdish Peshmerga forces help Yazidis as they arrive at a medical center in Altun Kupri, Iraq, on April 8. 
 
 Kurdish Peshmerga forces help Yazidis as they arrive at a medical center in Altun Kupri, Iraq, on April 8. 
 
 Yazidis embrace after being released by ISIS south of Kirkuk, Iraq, on Wednesday, April 8. ISIS released more than 200 Yazidis , a minority group whose members were killed, captured and displaced when the Islamist terror organization overtook their towns in northern Iraq last summer, officials said. 
 
 Thousands of Iraqis cross a bridge over the Euphrates River to Baghdad as they flee Ramadi on Friday, April 17. 
 
 Thousands of Iraqis cross a bridge over the Euphrates River to Baghdad as they flee Ramadi on Friday, April 17. 
 
 A member of Afghanistan's security forces stands at the site where a suicide bomber on a motorbike blew himself up in front of the Kabul Bank in Jalalabad, Afghanistan, on Saturday, April 18. ISIS claimed responsibility for the attack. The explosion killed at least 33 people and injured more than 100 others, a public health spokesman said. 
 
 A member of Afghanistan's security forces stands at the site where a suicide bomber on a motorbike blew himself up in front of the Kabul Bank in Jalalabad, Afghanistan, on Saturday, April 18. ISIS claimed responsibility for the attack. The explosion killed at least 33 people and injured more than 100 others, a public health spokesman said. 
 
 Iraqi soldiers fire their weapons toward ISIS group positions in the Garma district, west of the Iraqi capital of Baghdad, on Sunday, April 26. Pro-government forces said they had recently made advances on areas held by Islamist jihadists. 
 
 Iraqi soldiers fire their weapons toward ISIS group positions in the Garma district, west of the Iraqi capital of Baghdad, on Sunday, April 26. Pro-government forces said they had recently made advances on areas held by Islamist jihadists. 
 
 People search through debris after an explosion at a Shiite mosque in Qatif, Saudi Arabia, on Friday, May 22. ISIS claimed responsibility for the attack, according to tweets from ISIS supporters, which included a formal statement from ISIS detailing the operation. 
 
 Residents examine a damaged mosque after an Iraqi Air Force bombing in the ISIS-seized city of Falluja, Iraq, on Sunday, May 31. At least six were killed and nine others wounded during the bombing. 
 
 Residents examine a damaged mosque after an Iraqi Air Force bombing in the ISIS-seized city of Falluja, Iraq, on Sunday, May 31. At least six were killed and nine others wounded during the bombing. 
 
 Syrians wait near the Turkish border during clashes between ISIS and Kurdish armed groups in Kobani, Syria, on Thursday, June 25. The photo was taken in Sanliurfa, Turkey. ISIS militants disguised as Kurdish security forces infiltrated Kobani on Thursday and killed "many civilians," said a spokesman for the Kurds in Kobani. 
 
 Syrians wait near the Turkish border during clashes between ISIS and Kurdish armed groups in Kobani, Syria, on Thursday, June 25. The photo was taken in Sanliurfa, Turkey. ISIS militants disguised as Kurdish security forces infiltrated Kobani on Thursday and killed "many civilians," said a spokesman for the Kurds in Kobani. 
 
 People in Ashmoun, Egypt, carry the coffin for 1st Lt. Mohammed Ashraf, who was killed when the ISIS militant group attacked Egyptian military checkpoints on Wednesday, July 1. At least 17 soldiers were reportedly killed, and 30 were injured. 
 
 Protesters in Istanbul carry anti-ISIS banners and flags to show support for victims of the Suruc suicide blast during a demonstration on Monday, July 20. 
 
 Protesters in Istanbul carry anti-ISIS banners and flags to show support for victims of the Suruc suicide blast during a demonstration on Monday, July 20. 
 
 Mourners in Gaziantep, Turkey, grieve over a coffin Tuesday, July 21, during a funeral ceremony for the victims of a suspected ISIS suicide bomb attack. That bombing killed at least 31 people in Suruc, a Turkish town that borders Syria. Turkish authorities blamed ISIS for the attack. 
 
 Saudi officials and investigators check the inside of the mosque on August 6. 
 
 Saudi officials and investigators check the inside of the mosque on August 6. 
 
 The governor of the Asir region in Saudi Arabia, Prince Faisal bin Khaled bin Abdulaziz, left, visits a man who was wounded in a suicide bombing attack on a mosque in Abha, Saudi Arabia, on August 6. ISIS claimed responsibility for the explosion, which killed at least 13 people and injured nine others. 
 
 Buildings reduced to piles of debris can be seen in the eastern suburbs of Ramadi on August 6. 
 
 Buildings reduced to piles of debris can be seen in the eastern suburbs of Ramadi on August 6. 
 
 Smoke rises as Iraqi security forces bomb ISIS positions in the eastern suburbs of Ramadi, Iraq, on August 6. 
 
 Smoke rises as Iraqi security forces bomb ISIS positions in the eastern suburbs of Ramadi, Iraq, on August 6. 
 
 An ISIS fighter poses with spoils purportedly taken after capturing the Syrian town of al-Qaryatayn. 
 
 An ISIS fighter poses with spoils purportedly taken after capturing the Syrian town of al-Qaryatayn. 
 
 In this image taken from social media, an ISIS fighter holds the group's flag after the militant group overran the Syrian town of al-Qaryatayn on Thursday, August 6, the London-based Syrian Observatory for Human Rights reported. ISIS uses modern tools such as social media to promote reactionary politics and religious fundamentalism. Fighters are destroying holy sites and valuable antiquities even as their leaders propagate a return to the early days of Islam. 
 
 Iraqi men look at damage following a bomb explosion that targeted a vegetable market in Baghdad on Thursday, August 13. ISIS claimed responsibility for the attack. 
 
 Iraqi men look at damage following a bomb explosion that targeted a vegetable market in Baghdad on Thursday, August 13. ISIS claimed responsibility for the attack. 
 
 Smoke rises above a damaged building in Ramadi, Iraq, following a coalition airstrike against ISIS positions on Saturday, August 15. 
 
 Smoke rises above a damaged building in Ramadi, Iraq, following a coalition airstrike against ISIS positions on Saturday, August 15. 
 
 Shiite fighters, fighting alongside Iraqi government forces, fire a rocket at ISIS militants as they advance toward the center of Baiji, Iraq, on Monday, October 19. 
 
 Shiite fighters, fighting alongside Iraqi government forces, fire a rocket at ISIS militants as they advance toward the center of Baiji, Iraq, on Monday, October 19. 
 
 Members of the Egyptian military approach the wreckage of a Russian passenger plane Sunday, November 1, in Hassana, Egypt. The plane crashed the day before, killing all 224 people on board. ISIS claimed responsibility for downing the plane, but the group's claim wasn't immediately verified. 
 
 Syrian government troops walk inside the Kweiras air base on Wednesday, November 11, after they broke a siege imposed by ISIS militants. 
 
 Syrian government troops walk inside the Kweiras air base on Wednesday, November 11, after they broke a siege imposed by ISIS militants. 
 
 Smoke rises over the northern Iraqi town of Sinjar on November 12. Kurdish Iraqi fighters, backed by a U.S.-led air campaign, retook the strategic town, which ISIS militants overran last year. ISIS wants to create an Islamic state across Sunni areas of Iraq and Syria. 
 
 Emergency personnel and civilians gather at the site of a twin suicide bombing in Beirut, Lebanon, on Thursday, November 12. The bombings killed at least 43 people and wounded more than 200 more. ISIS appeared to claim responsibility in a statement posted on social media. 
 
 Wounded people are helped outside the Bataclan concert hall in Paris following a series of coordinated attacks in the city on Friday, November 13. The militant group ISIS claimed responsibility for the attacks, which killed at least 130 people and wounded hundreds more. 
 
 Investigators check the scene of a mosque attack Friday, November 27, in northern Bangladesh's Bogra district. ISIS has claimed responsibility for the attack that left at least one person dead and three more wounded. 
 
 Yemenis check the scene of a car bomb attack Sunday, December 6, in Aden, Yemen. Aden Gov. Jaafar Saad and six bodyguards died in the attack , for which the terror group ISIS claimed responsibility. 
 
 Syrian pro-government forces gather at the site of a deadly triple bombing Sunday, January 31, in the Damascus suburb of Sayeda Zeynab . ISIS claimed responsibility for the attack, according to a statement circulating online from supporters of the terrorist group. 
 
 Syrians gather at the site of a double car bomb attack in the Al-Zahraa neighborhood of the Homs, Syria, on February 21, 2016. Multiple attacks in Homs and southern Damascus kill at least 122 and injure scores, according to the state-run SANA news agency. ISIS claimed responsibility. 
 
 Wounded passengers are treated following a suicide bombing at the Brussels Airport on March 22, 2016. The attacks on the airport and a subway killed 32 people and wounded more than 300. ISIS claims its "fighters" launched the attacks in the Belgian capital. 
 
 But how to respond to Fan's "cold-blooded and violent" death presents a dilemma for China, which has stayed on the sidelines in the fight against ISIS and has a long-held principle of noninterference in other countries' affairs. 
 
 To date, Beijing has been vague on the question of what it will contribute to the global fight against ISIS and has declined to explicitly offer its support for airstrikes being conducted against the group in Syria. 
 
 Norway also condemned the killings. 
 
 "We have no grounds to doubt the contents of the photos that have been published," Foreign Minister Boerge Brende said, according to Reuters. 
 
 The U.N. Security Council added their voice to the outrage on Friday, and called on all countries to cooperate with China and Norway to help bring those responsible for the killings to justice. 
 
 Teacher turned drifter 
 
 It's not known how Fan was captured by ISIS or whether he was abducted in Iraq, Syria or elsewhere. 
 
 Fan doesn't appear to have a military background and worked as a high school teacher before switching to a career in advertising, according to Chinese state media. 
 
 In 2001, according to Chinese magazine Caijing, he told a Chinese radio program that he was a "drifter" but he hoped to win awards for his advertising work. 
 
 When news of Fan's capture first spread in September, neighbors near his last known address told Reuters that he hadn't lived at the home in many years, and that they didn't know if he had any family. 
 
 China's Foreign Ministry confirms Chinese hostage Fan Jinghui killed by #IS Thur, vows to bring criminals to justice pic.twitter.com/XM2OOQ12Yi — People's Daily,China (@PDChina) November 19, 2015 
 
 "The Chinese government and people have been very concerned about Fan Jinghui's safety since he was kidnapped," Foreign Ministry spokesman Hong Lei said in a statement Thursday. 
 
 He added the government had made "all-out" efforts to rescue him. 
 
 China on the sidelines of ISIS fight 
 
 Photos: Aid workers, journalists, pilots -- a look at ISIS' high profile hostage victims Photos: Aid workers, journalists, pilots -- a look at ISIS' high profile hostage victims The first U.S. citizen to be killed by ISIS, James Foley was taken hostage in Syria in November 2012 and beheaded in August 2014. The 40-year old from Rochester, New Hampshire was an experienced war journalist who contributed videos to major media outlets including Agence France-Presse and GlobalPost. Hide Caption 1 of 10 Photos: Aid workers, journalists, pilots -- a look at ISIS' high profile hostage victims Also a freelance journalist, Steven Sotloff disappeared during a reporting trip in Syria in August 2013 and was beheaded a year later. The U.S.-Israeli citizen, who wrote for publications like Time, Foreign Policy and Christian Science Monitor, was when he died. Hide Caption 2 of 10 Photos: Aid workers, journalists, pilots -- a look at ISIS' high profile hostage victims British national David Haines was abducted in March 2013 while working at a Syrian refugee camp for an aid group and executed a year later. The 44-year-old father of two had more than a decade of experience doing aid work providing logistics to Handicap International and as an unarmed peacekeeper with Nonviolent Peaceforce. Hide Caption 3 of 10 Photos: Aid workers, journalists, pilots -- a look at ISIS' high profile hostage victims Originally a taxi driver from the UK, Alan Henning was volunteering to deliver food and water to people affected by the Syrian civil war. He traveled to the Middle East in December 2013, was taken hostage on Boxing Day and held for more than a year before being killed. Hide Caption 4 of 10 Photos: Aid workers, journalists, pilots -- a look at ISIS' high profile hostage victims Peter Kassig , who served briefly as a U.S. Army Ranger, was working as a humanitarian worker in Syria when he was kidnapped on October 1, 2013 en route to deliver food and medical supplies. The 26-year old was confirmed dead after ISIS posted a video on November 16, 2014. Hide Caption 5 of 10 Photos: Aid workers, journalists, pilots -- a look at ISIS' high profile hostage victims Haruna Yukawa was a 42-year-old Japanese national who aspired to become a security contractor to Japanese companies in conflict zones. He was in the hands of ISIS for several months before a video released in January showed his killing. Hide Caption 6 of 10 Photos: Aid workers, journalists, pilots -- a look at ISIS' high profile hostage victims A freelance journalist, 47-year-old Kenji Goto worked in Syria and other war-torn countries for numerous outlets including Japan's public broadcaster NHK. Goto was in Japan when news surfaced about the capture of Haruna Yukawa, who he had befriended while working in the region. Goto returned to Syria hoping to negotiate his release but was himself captured and later executed. Hide Caption 7 of 10 Photos: Aid workers, journalists, pilots -- a look at ISIS' high profile hostage victims Royal Jordanian Air Force pilot Moath al-Kasasbeh went missing when his plane crashed during a December 2014 mission. A devout Muslim who memorized the Quran, the 27-year old was shown in an ISIS video in February where he was brutally burned alive. Hide Caption 8 of 10 Photos: Aid workers, journalists, pilots -- a look at ISIS' high profile hostage victims Kayla Mueller, was a 26-year-old humanitarian worker from Prescott, Arizona, who was taken hostage in August 2013 in Syria. Although the circumstances of her death are unclear, it was confirmed in February when ISIS sent a private message to her family. U.S. government officials later revealed that she had been tortured and sexually abused by ISIS' top leader Abu Bakr al Baghdadi during her captivity. Hide Caption 9 of 10 Photos: Aid workers, journalists, pilots -- a look at ISIS' high profile hostage victims Croatian national Tomislav Salopek was a topographer who was kidnapped in July while driving to work in Egypt, the Croatian foreign ministry said. In August, ISIS released a video showing his apparent beheading. The same month the group posted another video, showing the decapitated head and body of antiquities expert Khaled al-Asaad . The 82-year old, who dedicated his life to preserving cultural relics, was killed for not revealing the location of ancient treasures. Hide Caption 10 of 10 
 
 China hasn't been an active participant in the fight against ISIS, but, in the wake of the killing, pledged to "enhance its counter-terrorism cooperation with the international community." 
 
 But experts say the chances of Chinese aircraft flying alongside Russian and U.S. planes in Syria and Iraq are slim to none. 
 
 "It seems most likely that the Chinese government will continue to stay on the sidelines," said Xie Tao, a professor at Beijing Foreign Studies University. 
 
 Xie said there are multiple reasons for that. First, he said by officially declaring war on ISIS, Chinese officials fear that could draw further scrutiny from the group, and perhaps increase the chances of a Paris-style attack in China. 
 
 He also pointed to the notion of precedent. 
 
 If the Chinese were to join the anti-ISIS coalition, it would be a historic step in their foreign policy, ignoring a decades-old policy of nonintervention and potentially giving other countries leverage when asking China to take sides in future conflicts. 
 
 'For sale' 
 
 In September , the two men were pictured in the online magazine wearing yellow jumpsuits with the words "FOR SALE" below their portraits. 
 
 A warning appeared beneath their portraits at the bottom of each page: "Note: This is a limited time offer." 
 
 Norwegian Prime Minister Erna Solberg said in September that the kidnappers had asked for ransom several times but the Norwegian government did not pay ransom. 
 
 In its publication Dabiq, ISIS said the two men had been "executed after being abandoned by kafir nations and organizations."
– More horror from ISIS' media wing: A boy who appears to be no older than 12 shoots dead an alleged Israeli spy in the latest video released by the militants. The video shows an older, French-speaking militant threatening Jews before the boy shoots a man identified as Muhammad Said Ismail Musallam, a 19-year-old Israeli Arab, in the forehead, the BBC reports. The older militant describes the boy as a "lion cub of the caliphate" in the video, which also shows Musallam confessing to spying on ISIS for Israel, reports Reuters. Israeli authorities say Musallam was not a spy but an ISIS recruit, which his father confirms to CNN from his home in East Jerusalem. The teenager was promised "girls, money, cars, villas, paradise," but tried to leave when he "discovered that there is nothing" and was captured as he tried to return home, the father says. Separately, an ISIS defector now in Turkey has explained why some hostages seem calm in beheading videos the group has released. In an interview with Sky News, the defector claims foreign hostages were subjected to many filmed mock executions before they were finally killed, and part of his job as a translator for ISIS was to convince the Westerners that they would not be harmed and the videos were only to put pressure on their governments.