(CNN) Spain saw one of its most violent days in recent memory as a spate of incidents throughout the country appeared to be connected to a terror attack Thursday in Barcelona that left 13 people dead and more than 100 injured. 
 
 Authorities said they are working under the assumption that two other deadly events , a terrorist incident in the seaside city of Cambrils and a house explosion farther down the coast in Alcanar, were linked to the van attack in Barcelona that had ISIS taking credit. 
 
 Also Thursday, two police officers in Barcelona were hurt when they were hit by a car, but police were unsure whether that was related to the other incidents. 
 
 The deadly events began in the early evening with a van plowing through crowds on the renowned Las Ramblas avenue, a popular tourist section of Barcelona. Authorities said of the 80 people taken to hospitals, 15 were seriously hurt. 
 
 As police searched for the van driver, Spain's Prime Minister called it an act of "jihadi terrorism." 
 
 Here are the latest developments in a tragic day: 
 
 • Two suspects -- one from Morocco, one from the Spanish enclave of Melilla -- were arrested in connection with the Barcelona attack, Catalan Police Chief Josep Lluis Trapero said. 
 
 • One suspect in the Barcelona attack is on the run. "The driver abandoned the van and escaped from the area," Trapero said. 
 
 • About 115 kilometers to the southwest, there was a second attack early Friday. Catalan police tweeted that five suspected terrorists were killed in Cambrils. Emergency officials said six civilians and a police officer were injured. 
 
 • One person was killed in an explosion at a house in Alcanar, around 200 kilometers (120 miles) southwest of Barcelona. 
 
 • Catalan police said early Friday they are "working under the hypothesis that the terrorists taken down in Cambrils were related to the events that took place in Barcelona and Alcanar." 
 
 • A driver ran over two police officers at a security checkpoint in Barcelona, police said, and the driver was found near the city. The two officers suffered minor injuries and did not need hospital treatment, police said. It was unclear whether that incident was related to the terror attack. 
 
 • ISIS' media wing, Amaq, said the perpetrators of the Barcelona attack were "soldiers of the Islamic State." However, ISIS has not explicitly claimed responsibility. 
 
 The Barcelona attack was one of the most deadly in Spain since more than 190 people were killed in a March 2004 attack against commuter trains 
 
 Photos: Terror attacks in Spain A makeshift memorial pays tribute to those who were killed in a terror attack in Barcelona, Spain, on Thursday, August 17. A van rammed into a crowd of people near the popular tourist area of Las Ramblas. Early the next morning, a group of five attackers drove into pedestrians in the Spanish town of Cambrils, about 75 miles south of Barcelona. Hide Caption 1 of 19 Photos: Terror attacks in Spain Two women cry at the street memorial in Barcelona on Friday, August 18. Hide Caption 2 of 19 Photos: Terror attacks in Spain A man embraces a police officer in Cambrils on August 18. Earlier in the day, officers had engaged in a shootout with five attackers who drove a car into several pedestrians. All five were shot dead by police, four of them by one officer, police said. Hide Caption 3 of 19 Photos: Terror attacks in Spain Pigeons fly over a Barcelona crowd that gathered for a minute of silence on August 18. Hide Caption 4 of 19 Photos: Terror attacks in Spain Spain's King Felipe VI joins other officials in observing a minute of silence in Barcelona's Plaça de Catalunya. Hide Caption 5 of 19 Photos: Terror attacks in Spain Police officers investigate a car in Cambrils. Hide Caption 6 of 19 Photos: Terror attacks in Spain The van that plowed into the crowd in Barcelona is towed away from Las Ramblas on August 18. Hide Caption 7 of 19 Photos: Terror attacks in Spain Police officers check the area after towing away the van. Hide Caption 8 of 19 Photos: Terror attacks in Spain Police accompany clients of a store outside a cordoned off-area of Barcelona. Las Ramblas is especially crowded in the summer, the height of tourist season. The promenade passes by kiosks, flower sellers, cafes and bars. Hide Caption 9 of 19 Photos: Terror attacks in Spain Police officers work at the scene in Cambrils. Hide Caption 10 of 19 Photos: Terror attacks in Spain Police check people's identities as they clear Las Ramblas on August 17. Hide Caption 11 of 19 Photos: Terror attacks in Spain People evacuate an area of Barcelona on August 17. Hide Caption 12 of 19 Photos: Terror attacks in Spain Medics and police tend to injured people near the scene of the attack in Barcelona. Hide Caption 13 of 19 Photos: Terror attacks in Spain A woman cries as she speaks on her phone in Barcelona on August 17. Hide Caption 14 of 19 Photos: Terror attacks in Spain People react after the incident in Barcelona. Hide Caption 15 of 19 Photos: Terror attacks in Spain A police officer asks people to move back in Barcelona. Hide Caption 16 of 19 Photos: Terror attacks in Spain An injured person is carried by police in Barcelona. Hide Caption 17 of 19 Photos: Terror attacks in Spain People flee the scene after the attack at Las Ramblas. Hide Caption 18 of 19 Photos: Terror attacks in Spain The Catalan emergency services urged people via Twitter to avoid going out or undertaking any other type of movement that is not "strictly necessary." Hide Caption 19 of 19 
 
 Terror in the streets of another European city 
 
 It was the latest in a series of attacks in Europe in which vehicles have been used to mow down pedestrians in public spaces. More than 100 people have died in similar attacks in Berlin, London and Nice. 
 
 Reports of the incident emerged on social media about 5 p.m. (11 a.m. ET). Photographs and videos showed people fleeing the area. About two hours later, police confirmed a terror attack. 
 
 As the incident unfolded, police told everyone in the vicinity of Plaça de Catalunya and Las Ramblas to remain indoors until told it was safe to go outside. Footage posted to social media by witnesses showed chaotic scenes with people lying in the street, apparently dead or injured. 
 
 Information about most of the victims has not been released, but one Belgian was killed in the attack, Belgian Foreign Ministry spokesman Jose de Pierpont said. 
 
 Spanish Prime Minister Mariano Rajoy spoke of his grief and offered condolences to the families of the victims. 
 
 "I want to also express my solidarity with all of Spain to the city of Barcelona, today hit by jihadi terrorism, like other cities have been in the world," Rajoy said. 
 
 Witness reports gunshots 
 
 One witness told local media the situation was "very tense" and that all surrounding shops were evacuated. The witness said at least eight ambulances were at the scene. Emergency services said the area had been cordoned off and all public transportation stopped. 
 
 Another witness who was hiding in a shop nearby heard gunshots, according to state-run broadcaster TVE24. A third said he saw a van driving "around 80" kph, or 50 mph. He said "there is no doubt it was intentional," according to TVE24. 
 
 Ali Shirazinia, who was cycling alongside Las Ramblas at the time, told CNN he heard "a lot of screams" and saw the crowds split along the busy promenade. 
 
 Then he heard what sounded like the driver flooring the accelerator and saw a white van with blue markings come hurtling down the street. "It literally came right down the Ramblas and ran into people on every side," he said. 
 
 "The Ramblas is full of pedestrians, street merchants, street performers, and I saw people flying into the air and everyone was running into the shops on either side of the Ramblas, a lot of people were shocked." 
 
 Tourist Susan McClean told CNN she saw a "tidal wave" of people running away from Las Ramblas after the incident. 
 
 She ducked into a nearby shop and the shutters were pulled down while police sped toward the scene. 
 
 "There was clearly a lot of distress," she said. 
 
 McClean said she returned to her hotel one street away after leaving the shop. 
 
 An injured person is carried in Barcelona on Thursday. 
 
 Two arrests, one deadly explosion 
 
 Two suspects who were arrested were taken into custody hundreds of kilometers apart. 
 
 One suspect was arrested in Alcanar, around 200 kilometers (120 miles) southwest of Barcelona. 
 
 Also in Alcanar, one person was killed in an explosion at a house, Trapero said, adding that incident was connected to the Barcelona attack. But Trapero didn't say whether the arrest and explosion were tied to each other. 
 
 He did say the victim is Spanish and was not on police radar. 
 
 The other Barcelona suspect was arrested in Ripoll, about 110 kilometers (68 miles) north of Barcelona and 300 kilometers (186 miles) from Alcanar. 
 
 Government officials respond 
 
 The Catalan regional government said it was holding an emergency meeting to discuss the incident. 
 
 To facilitate police operations, the Catalan emergency services urged people via Twitter to avoid going out or undertaking any other type of movement that was not "strictly necessary." 
 
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 The Spanish royal family tweeted: "They are assassins, simply criminals who are not going to terrorize us. All of Spain is Barcelona. Las Ramblas will return to be everyone's." 
 
 The Union of Islamic Communities of Catalonia expressed "condemnation and repulse" for the Barcelona attack. 
 
 "Faced with this criminal fact, the union of Islamic communities in Catalonia reiterates its full commitment to the fight against any type of terrorism, and it is expected that those responsible for these attacks may be detained and brought before the courts as early as possible," its statement said. 
 
 Barcelona officials ordered all public events to be canceled, and metro and train stations in the area were closed. 
 
 Police officers are seen near the scene of the attack. 
 
 NATO chief: We stand united 
 
 World leaders were quick to voice their condemnation of the attack and offer support to Barcelona via Twitter. 
 
 "My thoughts are with all those affected. We stand united in the fight against terrorism," said NATO Secretary General Jens Stoltenberg. 
 
 US President Donald Trump said: "The United States condemns the terror attack in Barcelona, Spain, and will do whatever is necessary to help. Be tough & strong, we love you!" 
 
 The United States condemns the terror attack in Barcelona, Spain, and will do whatever is necessary to help. Be tough & strong, we love you! — Donald J. Trump (@realDonaldTrump) August 17, 2017 
 
 London Mayor Sadiq Khan also gave his support, saying: "London stands with Barcelona against the evil of terrorism." 
 
 London stands with Barcelona against the evil of terrorism. — Sadiq Khan (@SadiqKhan) August 17, 2017 
 
 German Chancellor Angela Merkel called the attack in Barcelona "revolting," her spokesman tweeted. "We are mourning the victims of this disgusting attack in Barcelona -- in solidarity and friendship side by side with the Spanish." 
 
 European Commission President Jean-Claude Juncker branded the Barcelona attack "cowardly," adding: "We will never be cowed by such barbarism." 
 
 Las Ramblas is a predominantly pedestrianized street popular among tourists in Barcelona. Extending for about three-quarters of a mile through the center of the city, the tree-lined street is especially crowded in the summer, the height of tourist season. 
 
 The promenade passes by kiosks, flower sellers, pavement cafes and bars. It includes a number of the city's most popular sites. ||||| Emergency workers stand on a blocked street in Barcelona, Spain, Thursday, Aug. 17, 2017. A white van jumped up onto a sidewalk and sped down a pedestrian zone Thursday in Barcelona's historic Las Ramblas... (Associated Press) 
 
 BARCELONA, Spain (AP) — A van veered onto a promenade and barreled down the busy walkway in central Barcelona on Thursday, swerving back and forth as it mowed down pedestrians and turned a picturesque tourist destination into a bloody killing zone. Thirteen people were killed and 100 were injured, 15 of them seriously, in what authorities called a terrorist attack. 
 
 Two people were arrested but the van driver, who fled on foot, remained at large. Early Friday morning, police killed five suspects engaged in an attack that injured six people in a seaside resort town and that the government for Spain's Catalonia region said was connected to the Barcelona killings. 
 
 The late afternoon attack in the city's Las Ramblas district left victims sprawled in the historic street, spattered with blood or writhing in pain from broken limbs. Others were ushered inside shops by officers with their guns drawn or fled in panic, screaming and carrying young children in their arms. 
 
 "It was clearly a terror attack, intended to kill as many people as possible," Josep Lluis Trapero, a senior police official for Catalonia told reporters late Thursday. 
 
 The Islamic State group claimed responsibility, saying in a statement on its Aamaq news agency that the attack was carried out by "soldiers of the Islamic State" in response to the extremist group's calls for followers to target countries participating in the coalition trying to drive it from Syria and Iraq. 
 
 Early Friday, Catalan police said they shot and killed five suspects in response to a terrorist attack in the seaside resort town of Cambrils, south of Barcelona. They said the suspects carried bomb belts, which were detonated by a police bomb squad. 
 
 Media reports said a car crashed into a police vehicle and nearby civilians and police shot the attackers, one brandishing a knife. Police did not immediately say how the attack was carried out. A police officer and five civilians were injured and two were in serious condition. 
 
 Police are working on the theory that the Cambrils and Barcelona attacks are connected, as well as a Wednesday night explosion in the town of Alcanar in which one person was killed. 
 
 Catalan Interior Minister Joaquin Forn told local radio RAC1 early Friday that the Cambrils attack "follows the same trail" as the Barcelona attack. "There is a connection." 
 
 He did not explain what connected the attacks but confirmed that the driver in the Barcelona attack remains at large. 
 
 The Catalan regional government said citizens from 24 countries were among the people killed and injured during the Barcelona van attack. 
 
 Authorities said the dead included a Belgian and a Greek woman was among the injured. Australia confirmed three of its citizens were injured; two others were Taiwanese and one was from Hong Kong, according to their governments. Germany was investigating whether its citizens were among the dead or injured. 
 
 Spanish Prime Minister Mariano Rajoy called the killings a "savage terrorist attack" and said Spaniards "are not just united in mourning, but especially in the firm determination to beat those who want to rob us of our values and our way of life." 
 
 After the afternoon attack, Las Ramblas went into lockdown. Swarms of officers brandishing hand guns and automatic weapons launched a manhunt in the downtown district, ordering stores and cafes and public transport to shut down. 
 
 Several hours later authorities reported two arrests, one a Spanish national from Melilla, a Spanish-run Mediterranean seafront enclave in North Africa, and the other a Moroccan. They declined to identify them. 
 
 Trapero said neither of them was the van's driver, who remained at large after abandoning the van and fleeing on foot. The arrests took place in the northern Catalan town of Ripoll and in Alcanar, where a gas explosion in a house is being investigated for a possible connection. 
 
 Spanish public broadcaster RTVE and other news outlets named one of the detained as Driss Oukabir, a French citizen of Moroccan origin. RTVE reported said Oukabir went to police in Ripoll to report that his identity documents had been stolen. Various Spanish media said the IDs with his name were found in the attack van and that he claimed his brother might have stolen them. 
 
 Media outlets ran photographs of Oukabir they said police had issued to identify one of the suspects. The regional police told the Associated Press that they had not distributed the photograph. They refused to say if he was one of the two detained. 
 
 Barcelona is the latest European city where attackers used a vehicle as a weapon of terror against a popular tourist destination, after other deadly attacks in France, Germany, Sweden and Britain. 
 
 "London, Brussels, Paris and some other European cities have had the same experience. It's been Barcelona's turn today," Carles Puigdemont, president of Catalonia's government. 
 
 Thursday's bloodshed was Spain's deadliest attack since 2004, when al-Qaida-inspired bombers killed 192 people in coordinated assaults on Madrid's commuter trains. In the years since, Spanish authorities have arrested nearly 200 jihadists. The only deadly attacks were bombings claimed by the Basque separatist group ETA that killed five people over the past decade but it declared a cease-fire in 2011. 
 
 "Unfortunately, Spaniards know the absurd and irrational pain that terrorism causes. We have received blows like this in recent years, but we also that terrorists can be beaten," Rajoy said. 
 
 During the search for the perpetrators, troopers shot and killed a man who was in a vehicle that hit two officers at a traffic blockade on the outskirts of Barcelona. But Trapero said the driver's actions were not linked to the van attack. 
 
 Las Ramblas cuts through the center of Barcelona and is one of the city's top tourist destinations. It is a wide avenue of stalls and shops with a pedestrian-only walkway in the center while cars can travel on either side. 
 
 A taxi driver who witnessed the attack, Oscar Cano, said the white van suddenly jumped the curb and sped down the central pedestrian area at a high speed for about 500 yards (457 meters), veering from side to side as it targeted people. 
 
 "I heard a lot of people screaming and then I saw the van going down the boulevard," another witness, Miguel Angel Rizo, told The Associated Press. "You could see all the bodies lying through Las Ramblas. It was brutal. A very tough image to see." 
 
 Jordi Laparra, a 55-year-old physical education teacher and Barcelona resident, said it initially looked like a terrible traffic accident. 
 
 "At first I thought it was an accident, as the van crashed into 10 people or so and seemed to get stuck. But then he maneuvered left and accelerated full speed down the Ramblas and I realized it was a terrorist attack," Laparra said. "He zigzagged from side to side into the kiosks, pinning as many people as he could, so they had no escape." 
 
 Carol Augustin, a manager at La Palau Moja, an 18th-century former palace on Las Ramblas that now houses offices and a tourism center, said the van passed in front of the building. 
 
 "People started screaming and running into the office. It was such a chaotic situation. There were families with children," she said. 
 
 Dutch visitor Tamara Jurgen said she and a friend were inside a clothing store steps from the scene and were kept inside until it was safe to leave. 
 
 "We were downstairs when it happened and everyone was screaming and running. We had to run up to the roof and throw our bags over a wall," Jurgen said. "We were all together along this wall and we were scared we were going to have to jump." 
 
 Barcelona Mayor Ada Colau announced a minute of silence to be held Friday in Barcelona's main square "to show that we are not scared." The prime minister announced three days of national mourning. 
 
 Leaders around the world offered their support and condolences to Barcelona after the attack. 
 
 President Donald Trump tweeted that the U.S. condemned the attack and "will do whatever is necessary to help. Be tough & strong, we love you!" 
 
 British Prime Minister Theresa May said the U.K. "stands with Spain against terror" while French President Emmanuel Macron tweeted: "All my thoughts and solidarity from France for the victims of the tragic attack in Barcelona. We will remain united and determined." 
 
 Spain has been on a security alert one step below the maximum since June 2015 following attacks elsewhere in Europe and Africa. 
 
 Cars, trucks and vans have been the weapon of choice in multiple extremist attacks in Europe in the last year. 
 
 The deadliest targeted Bastille Day revelers in Nice, France, in July 2016, killing 86 people. In December 2016, 12 people died after a driver used a hijacked truck to drive into a Christmas market in Berlin. 
 
 Multiple attacks occurred in London this year. A man in a rented SUV plowed into pedestrians on Westminster Bridge, killing four people before he ran onto the grounds of Parliament and stabbed an unarmed police officer to death in March. 
 
 Four other men drove onto the sidewalk of London Bridge, unleashing a rampage with knives that killed eight people in June. Another man also drove into pedestrians leaving a London mosque later in June. 
 
 ___ 
 
 Hatton reported from Lisbon. Associated Press writers Ciaran Giles in Madrid, Albert Stumm in Barcelona and Alan Clendenning in Phoenix also contributed to this report. 
 
 __ 
 
 This version corrects that the van veered onto a promenade, not a sidewalk. ||||| A cyclist rides his bicycle next to a Spanish national flag at half staff, left, in memory of terrorist attacks victims in Las Ramblas, Barcelona, in Laredo, northern Spain, Friday, Aug. 18, 2017. Spanish... (Associated Press) 
 
 BARCELONA, Spain (AP) — The back-to-back vehicle attacks in Barcelona and a nearby resort had been planned for a long time by an Islamic terrorist cell — and could have been far deadlier had its base not been destroyed by an apparently accidental explosion this week, Spanish officials said Friday. 
 
 Police intensified their manhunt for an unknown number of suspects still on the loose Friday. They shot and killed five people early Friday who were wearing fake bomb belts as they attacked the seaside resort of Cambrils with a speeding car. Police also arrested four others believed linked to the Cambrils attack and the carnage Thursday on a famous Barcelona promenade. 
 
 The number of victims stood at 13 dead and 120 wounded in Barcelona, and one dead and five wounded in Cambrils. Sixty-one people wounded by the van in Barcelona remained hospitalized on Friday, with 17 of them in critical condition. 
 
 Authorities said the two attacks were related and the work of a large terrorist cell that had been plotting attacks for a long time from a house in Alcanar, 200 kilometers (124 miles) down the coast from Barcelona. The house was destroyed by an explosion of butane gas on Wednesday night that killed one person. 
 
 Senior police official Josep Lluis Trapero said police were working on the theory that the suspects were preparing a different type of attack, using explosives or gas, and that the apparently accidental explosion prevented them from carrying out a far more deadly rampage. 
 
 The Islamic State group quickly claimed responsibility for Europe's latest bout of extremist violence, in which a van roared down Barcelona's historic Las Ramblas promenade on Thursday. Hours later, a blue Audi plowed into people in the popular seaside town of Cambrils. 
 
 Spanish Prime Minister Mariano Rajoy declared Friday that the fight against terrorism was a global battle and Europe's main problem. 
 
 Police said they arrested two more people Friday, after an initial two were arrested Thursday — three Moroccans and one Spaniard, none with terrorism-related records. Three of them were nabbed in the northern town of Ripoll. Another arrest was made in Alcanar. 
 
 "We are not talking about a group of one or two people, but rather a numerous group," regional Interior Ministry chief Joaquim Forn told Onda Cero radio. 
 
 Amid heavy security, Barcelona tried to move forward Friday, with its iconic Las Ramblas promenade quietly reopening to the public and King Felipe VI and Rajoy joining thousands of residents and visitors in observing a minute of silence in the city's main square. 
 
 "We are not afraid! We are not afraid!" the crowd chanted in Catalan and Spanish. 
 
 But the dual attacks unnerved a country that hasn't seen an Islamic extremist attack since 2004, when al-Qaida-inspired bombers killed 192 people in coordinated assaults on Madrid's commuter trains. Unlike France, Britain, Sweden and Germany, Spain has largely been spared, thanks in part to a crackdown that has netted some 200 suspected jihadis in recent years. 
 
 Authorities were still reeling from the Barcelona van attack when police in the popular seaside town of Cambrils, 130 kilometers (80 miles) to the south, fatally shot five people near the town's boardwalk who had plowed into tourists and locals with their car. Forn said the five were wearing fake bomb belts. 
 
 One woman in Cambrils died Friday from her injuries, Catalan police said. Five others were injured. 
 
 Cambrils Mayor Cami Mendoza said the town had taken precautions after the Barcelona attack, but the suspects focused their attack on the narrow path to the boardwalk, which is usually packed. 
 
 "We were on a terrace," said bystander Jose Antonio Saez. "We heard the crash and intense gun shots, then the dead bodies on the floor, shot by the police." 
 
 Others described scenes of panic, and found safety inside bars and restaurants until police had secured the area. 
 
 Resident Markel Artabe was heading out to get an ice cream when he heard the shots. 
 
 "We began to run. We saw one person lying on the pavement with a shot in his head, then 20 to 30 meters farther on we saw two more people, who must have been terrorists as they had explosive belts around them," he said. "We were worried so we hid." 
 
 Regional police say the Cambrils suspects, armed with knives and an ax, wounded one person in the face with a knife before they were killed by police. 
 
 The Cambrils attack came hours after a white van mowed down pedestrians on Barcelona's picturesque Las Ramblas promenade, leaving victims sprawled across the street, spattered with blood and writhing in pain from broken limbs. Others were ushered inside shops by officers with guns drawn or fled in panic, carrying young children in their arms. 
 
 "It was clearly a terror attack, intended to kill as many people as possible," Trapero said. 
 
 The Islamic State group said on its Aamaq news agency that the Barcelona attack was carried out by "soldiers of the Islamic State" in response to its calls for followers to target countries participating in the coalition trying to drive the extremist group from Syria and Iraq. 
 
 Islamic extremists have systematically targeted Europe's major tourist attractions in recent years. Rented or hijacked vehicles have formed the backbone of a strategy to target the West and its cultural symbols. Barcelona's Las Ramblas is one of the most popular attractions in a city that swarms with foreign tourists in August. 
 
 The dead and wounded in the two attacks hailed from 34 countries. Two Italians, an American and a Belgian woman were among the dead, officials said. 
 
 Spanish public broadcaster RTVE and other news outlets named one of those detained in the Barcelona attack as Driss Oukabir, a French citizen of Moroccan origin. RTVE reported that Oukabir went to police in Ripoll to report that his identity documents had been stolen. Spanish media said documents with his name were found in the attack van and that he claimed his brother might have stolen them. 
 
 Citing police sources, Spain's RTVE as well as El Pais and TV3 identified the brother, 17-year-old Moussa Oukabir, as the suspected driver of the van. Forn declined to respond to questions about him Friday. 
 
 "We don't know if the driver is still in Barcelona or not, or what direction he fled in," Forn told SER Radio. 
 
 Forn said the police were trying to identify the five dead attackers in Cambrils as well as the driver of the Barcelona van. 
 
 "There could be more people in Ripoll connected to the group," he said, adding that the two attacks "follow the same trail. There is a connection." 
 
 Rajoy called the killings a "savage terrorist attack" and said Spaniards "are not just united in mourning, but especially in the firm determination to beat those who want to rob us of our values and our way of life." 
 
 By Friday morning, Las Ramblas promenade had reopened to the public, albeit under heavy surveillance and an unusual quiet. 
 
 "It's sad," New York tourist John Lanza said, as the family stood outside the gated La Boqueria market. "You can tell it's obviously quieter than it usually is, but I think people are trying to get on with their lives." 
 
 At noon Friday, a minute of silence honoring the victims was observed at the Placa Catalunya, near the top of Las Ramblas where the van attack started. The presence of Spain's king and prime minister alongside Catalonia's regional authorities marked a rare moment when the question of Catalonian independence — the subject of a proposed Oct. 1 referendum — didn't divide its people. 
 
 Rajoy declared three days of national mourning. 
 
 Since the Madrid train bombings, the only deadly attacks in Spain had been bombings claimed by the Basque separatist group ETA that killed five people over the past decade. It declared a cease-fire in 2011. 
 
 "Unfortunately, Spaniards know the absurd and irrational pain that terrorism causes. We have received blows like this in recent years, but we also know that terrorists can be beaten," Rajoy said. 
 
 ___ 
 
 Hatton reported from Lisbon and Giles reported from Madrid. Albert Stumm and Alex Oller in Barcelona also contributed to this report.
– Police in Spain say they killed five terror suspects Thursday night during a second terrorist attack hours after a van plowed into pedestrians in Barcelona, killing 13 people and injuring more 100. Police have released few details on the suspects killed in the town of Cambrils, south of Barcelona, though there are unconfirmed reports that they were wearing explosive belts. Authorities say the Cambrils suspects deliberately drove an Audi A3 into pedestrians before encountering a police patrol. Police say six bystanders and one police officer were also injured, the Guardian reports. Two other suspects have been arrested in connection with the Barcelona attack, authorities say, though the van's driver, who fled on foot after creating scenes of horror on a pedestrian walkway, is still believed to be at large. Police say they believe the Cambrils attack was linked to the Barcelona attack. ISIS has claimed responsibility for Spain's deadliest terrorist attack since 2004, saying it was carried out by "soldiers of the Islamic State," the AP reports. Authorities say that before the Barcelona attack, a person was killed in a blast in Alcanar, a town southwest of the city, where people in a house were apparently preparing explosives, Reuters reports.