A day after deposing President Mohammed Morsi, the Egyptian military has moved against the leadership of the Muslim Brotherhood and is seeking to arrest hundreds of members. Here's what you need to know:
From the BBC:
Mr Morsi is in detention, as well as senior figures in the Islamist group of which he is a member. Hundreds more are being sought.
The top judge of Egypt's constitutional court, Adly Mahmud Mansour, has been sworn in as interim leader.
He has pledged to hold elections based on "the genuine people's will".
Senior figures in the Brotherhood and its political wing, the Freedom and Justice Party (FJP), 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.
The upheaval comes after days of mass rallies against Mr Morsi and the Brotherhood, accused of pursuing an Islamist agenda and failing to tackle Egypt's economic problems.
Some 50 people have died since the latest unrest began on Sunday, with correspondents saying that there are continuing fears of confrontation between the pro- and anti-Morsi blocs.
A coalition of Islamist parties - the National Coalition in Support of Legitimacy - has called for mass prayers to denounce the army's actions following Muslim prayers on Friday.
Al Jazeera is reporting that Morsi and other Islamists are also facing travel bans:
Egyptian judicial authorities opened an investigation into accusations that Morsi and 15 other Islamists had insulted the judiciary, investigating judge Tharwat Hammad said, imposing a travel ban on all of them.
The Brotherhood's top leader, Mohamed Badie, and his deputy, Khairat el-Shater, were among those investigated, judicial and army sources told Reuters news agency.Shater was the group's first choice candidate to run in last year's presidential election. He was disqualified from the race due to past convictions.
Hundreds of Muslim Brotherhood officials were also reported to have been arrested, with many senior leaders being held in the Torah prison in Cairo - the same prison holding Hosni Mubarak, who was himself deposed in the 2011 revolution.
A senior Muslim Brotherhood leader said on Thursday that the Islamist group will not take up arms in response to the coup.
"This is a military coup. We will remain and deprive it of legitimacy until it is corrected," Mohamed El-Beltagy told reporters at a pro-Morsi sit-in outside a mosque in Cairo.
Watch protestors in Cairo erupt in celebration after Morsi was deposed: