Egypt's interim administration has published a timetable for a transition to a new democratic government, hours after the Muslim Brotherhood called for nationwide protests after the army shot dead scores of people outside the elite Republican Guards' headquarters in Cairo. 
 
 The interim administration expressed "deep regret" for those killed in violence in Cairo on Monday, adding that it had formed a judicial committee to investigate the events. 
 
 Interim president Adly Mansour on Tuesday morning released details of a timetable for parliamentary elections by 2014, after which a date will be announced for a presidential ballot. 
 
 The country will have five months to amend the current draft constitution, suspended following Mohamed Morsi's removal last week, ratify it in a referendum, and then hold parliamentary elections, according to the text of the 33-article decree published online. 
 
 The whole process will take no more than 210 days, according to the decree, meaning elections will be by February at the latest. 
 
 A senior Muslim Brotherhood official denounced the decree. "A constitutional decree by a man appointed by putchists... brings the country back to square one," said Essam al-Erian in a Facebook posting. 
 
 Al Jazeera's Nicole Johnston, reporting from Cairo, said that some liberal opposition parties have said that instead of the constitution being amended a new one should be made. 
 
 She added that Cairo has been quiet since morning, with a few rallies and protests at Nasr City but not in large numbers. Our correspondent said that more pro-Morsi protesters are expected to turn out later. 
 
 The Brotherhood has called for nationwide protests to take place a day after a deadly shooting at the site of a sit-in by its supporters in Cairo left at least 51 dead and hundreds injured. 
 
 The Islamist group released the names of 42 people killed outside the Republican Guards' building, as the interior ministry and military said two policemen and a soldier were also killed. 
 
 
 
 The military blamed "terrorists", while witnesses, including Brotherhood supporters at the scene, said security forces fired only warning shots and tear gas, and that "thugs" in civilian clothes carried out the shootings. 
 
 
 
 The US called on the Egyptian army to exercise "maximum restraint", while also condemning "explicit" Brotherhood calls to violence. 
 
 'Monday Massacre' 
 
 Mohamed Ibrahim El-Beltagy, a Brotherhood MP, described the shootings during dawn prayers after police had stormed the site as a "massacre". ||||| Media playback is unsupported on your device Media caption Mr Mansour praised the armed forces and the Egyptian people 
 
 The top judge of Egypt's Constitutional Court, Adly Mahmud Mansour, has been sworn in as interim leader, a day after the army ousted President Mohammed Morsi and put him under house arrest. 
 
 Mr Mansour said fresh elections were "the only way" forward, but gave no indication of when they would be held. 
 
 Mr Morsi, Egypt's first freely elected leader, is under house arrest after what he says was a military coup. 
 
 The army said he had "failed to meet the demands of the people". 
 
 The upheaval comes after days of mass rallies against Mr Morsi and the Islamist Muslim Brotherhood movement he comes from. 
 
 Protesters accused them of pursuing an Islamist agenda and of failing to tackle Egypt's economic problems. 
 
 The health ministry says at least 10 people were killed and scores injured in clashes at rival protests across the country overnight. Some 50 people have died since the latest unrest began on Sunday. 
 
 Unnamed officials have said Mohammed Badie, supreme leader of the Muslim Brotherhood, has been arrested in Marsa Matrouh, a Mediterranean coastal city to the west of Cairo. 
 
 He is the latest high-profile detainee from the Brotherhood. 
 
 Mr Mansour was sworn in as chief justice of the Supreme Constitutional Court on Thursday morning, then, shortly after, he took the oath to become interim head of state, vowing to "preserve the system of the republic, and respect the constitution and law, and guard the people's interests". 
 
 Army's post-Morsi roadmap Constitution to be suspended temporarily and interim president sworn in 
 
 "Strong and competent" civilian technocratic government to be installed 
 
 Supreme Court to pass a draft law on parliamentary election and prepare for parliamentary and presidential polls 
 
 "Charter of honour" to be drawn up and followed by the media 
 
 Measures taken to empower young people and a national reconciliation committee to be formed Profile: Adly Mahmud Mansour Coup or no coup? Twitter translates Egypt tweets Laser pens light up protests 
 
 He said he would safeguard "the spirit of the revolution" which removed Hosni Mubarak from power in 2011, and would "put an end to the idea of worshipping the leader". 
 
 He held out an olive branch to the Muslim Brotherhood, saying they were "part of this people and are invited to participate in building the nation". 
 
 Elections would be held based on "the genuine people's will, not a fraudulent one," he said. "This is the only way for a brighter future, a freer future, a more democratic one". 
 
 Mr Mansour also praised the military as "the conscience of the nation and the guarantor of its security and safety". 
 
 However Gehad el-Haddad, a spokesman for the Muslim Brotherhood, told the BBC that Mr Morsi had been put under house arrest and the "entire presidential team" was in detention. 
 
 Mr Haddad's father, senior Morsi aide Essam el-Haddad, and Saad al-Katatni, head of the Brotherhood's political wing, are among those being held, as well as supreme leader Mr Badie. 
 
 We don't have a democracy anymore. The military have taken it away from us. We will take to the streets and stay there Islam Hawala, Giza Voices from the streets 
 
 Arrest warrants have reportedly been issued for some 300 other members of the Muslim Brotherhood, including Mr Badie's deputy, Khairat al-Shater. 
 
 The BBC's Shaimaa Khalil in Cairo says the Brotherhood is refusing to acknowledge the change in power and is planning to hold rallies across the country. 
 
 Both sides are highly charged, our correspondent says, and confrontation on the streets appears inevitable. 
 
 Senior figures in the Brotherhood and its political wing, the Freedom and Justice Party, were quoted as saying they would not work with the new powers - but would not take up arms or encourage followers to do so either. 
 
 US concern 
 
 As Mr Mansour took his oath, military jets flew over the capital trailing the colours of the national flag. 
 
 Cairo's Tahrir Square was calm on Thursday morning, though crowds were expected to gather later in the day. 
 
 Media playback is unsupported on your device Media caption Morsi supporters told BBC World Service that the army's action did not mean the end of political Islam in Egypt 
 
 Many had celebrated in Tahrir Square through the night after the army announced on state TV Mr Morsi had failed to meet a deadline to respond to protesters' demands. 
 
 The army's roadmap for the post-Morsi era includes: 
 
 Suspension of the constitution 
 
 A civilian, transitional technocratic government 
 
 Supreme Constitutional Court to prepare for presidential and parliamentary elections 
 
 A "charter of honour" to be drawn up and followed by national media 
 
 Egypt's revolution - key events 11 February 2011 - Hosni Mubarak resigns as president after two weeks of massive street protests and violent clashes 
 
 January 2012 - Muslim Brotherhood-affiliated Freedom and Justice Party wins parliamentary elections with almost half of votes 
 
 June 2012 - Mohammed Morsi becomes Egypt's first freely elected president 
 
 22 November 2012 - Mr Morsi issues a controversial decree granting himself extensive powers - after angry protests he eventually rescinds most of it 
 
 3 July 2013 - The army suspends the constitution and removes Mr Morsi from power World reacts to removal of Morsi Egypt after the revolution In pictures: Egypt crisis 
 
 Countries in the region have reacted cautiously to the events. Saudi Arabia, Qatar and the United Arab Emirates welcomed the change in leadership, while Turkey's Deputy Prime Minister Bekir Bozdag cautioned that it was "not a result of the will of the people". 
 
 Senior African Union officials said Egypt's membership could well be suspended, as it would be in any country "where an unconstitutional change has taken place". 
 
 US President Barack Obama said he was "deeply concerned" by the events, and called for a swift return to civilian rule, while UK Prime Minister David Cameron said a "democratic transition" must take place soon. 
 
 German Foreign Minister Guido Westerwelle described the ousting as "a serious setback for democracy" and called on all sides to refrain from "violence and arbitrariness". 
 
 UN chief Ban Ki-moon noted the "legitimate concerns" of protesters, but said military inference was always "of concern". 
 
 This will be interpreted by many political Islamists as sending a blunt message: it doesn't necessarily pay to choose the ballot over the bullet Dangerous moment for the Middle East 
 
 Meanwhile, Syrian President Bashar al-Assad welcomed events unreservedly, calling the ousting of Mr Morsi the "fall of so-called political Islam". 
 
 The recent mass protests that led to the army's intervention were called by the Tamarod (Rebel) movement, which said it had collected a 22-million strong petition demanding Mr Morsi stand down. 
 
 Mohammed Morsi became Egypt's first Islamist president on 30 June 2012, after winning an election considered free and fair following the 2011 revolution that toppled Hosni Mubarak. 
 
 However his term in office was marred by constant political unrest and a sinking economy. 
 
 His moves to entrench Islamic laws and concentrate power in the hands of the Muslim Brotherhood also alienated liberals and secularists. ||||| Media playback is unsupported on your device Media caption Pro-Morsi supporters tell Lyse Doucet they are willing to die for their cause 
 
 Egypt's Muslim Brotherhood has rejected a timetable for new elections laid out by interim president Adly Mansour, saying it is illegitimate. 
 
 The Tamarod protest movement has said it was not consulted on the election plan and has asked to see Mr Mansour. 
 
 Meanwhile, ex-finance minister Hazem el-Beblawi has been named interim prime minister, and opposition figure Mohamed ElBaradei vice president. 
 
 It follows the ousting of President Mohammed Morsi by the army last week. 
 
 It is not yet clear whether Mr Beblawi, a liberal economist, can gain the support necessary to actually become prime minister. 
 
 Mr ElBaradei's own candidacy as prime minister foundered earlier in the week when the hardline Salafist Nour party objected. 
 
 The party withdrew from talks to form a new government, but reports on Tuesday suggested it was back on board. 
 
 'Massacre' 
 
 Nour has described the deaths of at least 51 people on Monday as a "massacre". The incident took place outside the Presidential Guard barracks where Mr Morsi's supporters say he is held. 
 
 The Muslim Brotherhood - Egypt's main Islamist movement, to which Mr Morsi belongs - says its members were fired on at a sit-in for the ousted leader. The army says it responded to an armed provocation. 
 
 As a people pull apart, fear grows not just about saving a revolution, but a country too 
 
 Mr Morsi was Egypt's first freely elected president. His removal last Wednesday followed protests by millions of people who accused him of becoming increasingly authoritarian, pursuing an Islamist agenda, and failing to tackle Egypt's economic woes. 
 
 The Brotherhood has denounced the military's action as a coup. 
 
 According to the Reuters news agency, the Nour party has said it will support Mr Beblawi's appointment, but that it is still studying the nomination of Mr ElBaradei, a former chief nuclear official for the United Nations. 
 
 'Invalid' 
 
 Mr Mansour's decree, issued late on Monday, laid out plans to set up a panel to amend the suspended Islamist-drafted constitution within 15 days. 
 
 The changes would then be put to a referendum - to be organised within four months - which would pave the way for parliamentary elections, possibly in early 2014. 
 
 Once the new parliament convenes, elections would be called to appoint a new president. 
 
 Mr Erian, deputy chairman of the Brotherhood's political wing, the Freedom and Justice Party (FJP), said the declaration was "a constitutional decree by a man appointed by putchists" which "brings the country back to square one". 
 
 Adly Mansour's transition timeline Panel formed within 15 days to review constitution 
 
 Constitutional amendments to be finalised and put to referendum in four months 
 
 Parliamentary elections to be held by early 2014 
 
 Presidential elections to be called once new parliament convenes Key players in the Egyptian crisis Is Egypt heading for holy war? 
 
 Ahmad Abu-Barakah, a legal adviser to the FJP, said the decree was "invalid and illegitimate", the private Al-Misri al-Yawm news site reports. 
 
 The Brotherhood's spokesman Gehad el-Haddad told AFP news agency that further protests and sit-ins would be held across the country on Tuesday, as funerals are held for supporters killed in Monday's violence in Cairo. 
 
 Brotherhood supporters camping outside the Rabaa al-Adawiya mosque in north-east Cairo also expressed their anger. 
 
 "No-one voted for this president," Ashraf Awad told the Associated Press news agency. "He is illegitimate in being sworn in, so all decisions he makes, people will not recognise." 
 
 Another protester, Hamdi el-Said, said Mr Morsi remained his president. "I will defend my vote which I gave to him until I become a martyr like the people who were killed yesterday," he said. 
 
 Conflicting reports 
 
 The Muslim Brotherhood has described what happened outside the Presidential Guard barracks on Monday as a "massacre", and has called for "an uprising by the great people of Egypt against those trying to steal their revolution with tanks". 
 
 Image caption Maram Omar, 19, student Morsi came through ballot boxes, and he should only leave in the same way Egypt clashes: Divided views 
 
 It says the army raided a peaceful sit-in as protesters were performing dawn prayers, and that 53 people were killed. 
 
 The health ministry said at least 51 people were killed and 435 people wounded. 
 
 But army spokesman Col Ahmed Mohammed Ali said troops only opened fire after a group armed with live ammunition, petrol bombs and stones attacked them. 
 
 He said that two police and one soldier were killed in the exchange of fire. Eight soldiers were critically wounded. 
 
 Col Ali also disputed claims that children had died, saying pictures of dead children posted on the internet were in fact images taken in Syria in March. 
 
 Mr Morsi is believed by the Brotherhood to be held at the barracks, but the military says he is elsewhere. 
 
 The killings follow an incident in the same location on Friday in which three people died and dozens were wounded as troops fired on crowds. 
 
 Mr Mansour has appealed for calm, and has ordered an investigation into the incident. 
 
 Media playback is unsupported on your device Media caption Spokesman for the Egyptian ministry: "There was a treacherous attack" 
 
 In response to the killings the grand sheikh of al-Azhar University, Ahmed al-Tayeb - seen as the highest authority in Sunni Islam - warned of civil war and said he was going into seclusion until the violence was over. 
 
 The BBC's Jim Muir in Cairo says the crisis in Egypt remains acute, and any move to defuse it politically will be hostage to developments and possible violence on the ground,. 
 
 Lyse Doucet: The struggle to save Egypt's revolution 
 
 Frank Gardner: Is Egypt heading for holy war? 
 
 Key players in the Egyptian crisis 
 
 Egypt clashes: Divided views
– Egypt's interim leadership has set an elections timetable to establish a new democratic government, but the Muslim Brotherhood immediately rejected the idea and has called for an "uprising." The interim administration wants the current, suspended draft constitution to be amended and ratified in a referendum; parliamentary elections by 2014; and presidential elections after that, al-Jazeera reports. But here's the response from a senior Muslim Brotherhood official on Facebook: "A constitutional decree by a man appointed by putchists ... brings the country back to square one." And a legal adviser for the Brotherhood's political arm called Adli Mansour's decree "invalid and illegitimate," the BBC reports. The Brotherhood wants nationwide protests today, in the wake of 51 Morsi supporters being shot dead during a Cairo sit-in yesterday, which it is calling a "massacre." The interim administration expressed "deep regret" for yesterday's violence, while the military blamed it on "terrorists." Witnesses say civilian "thugs," not security forces, fired the lethal shots. It's very unclear exactly what happened, reports the AP, which has a more detailed look at the violence. Meanwhile, the Washington Post takes a look at what's at stake for the Brotherhood, which rose from a banned, oppressed organization to a powerful one within a decade, and now must decide whether to fight rather than return to lives of persecution, ousted from the political process.