The Muslim Brotherhood is the best-organised political movement in the most influential country in the Arab world. But what do they do next?
The Muslim Brotherhood tells ITV News they are against violence but will "pay the price of their blood" to restore their ousted president.
Egypt's army has named two further officials in the transitional government as its supporters and opponents vowed to stay on the streets.
An Egyptian court has sentenced Muslim Brotherhood leader Mohamed Badie to life in prison, the court's judge said, for inciting violence that erupted after the army deposed Islamist President Mohamed Morsi last year.
According to Reuters, the court also upheld death sentences for 10 other Brotherhood leaders and supporters, of whom eight were charged in absentia, on the same crimes.
Two supporters of former Egyptian president Mohamed Morsi have been sentenced to death for committing murder during violence which occurred last year after the army's deposed the Islamist head of state.
The pair were standing trial on charges that included throwing youths from the roof of a building in Alexandria.
The sentences came in the wake of the separate and unprecedented sentencing to death of 529 supporters of Morsi's Muslim Brotherhood last Monday.
Three journalists working for the Gulf new agency Al Jazeera have been detained in Egypt accused of broadcasting illegally from a hotel suite among other allegations.
Al Jazeera has named them as former BBC journalist Peter Greste, Baher Mohamed and Mohamed Fahmy.
A fourth person - a cameraman - was arrested with them on Sunday but has since been released. The other three have been remanded in custody for 15 days.
Egyptian authorities have accused Al Jazeera of backing the Muslim Brotherhood, which was recently ruled a terrorist organisation.
The Brotherhood leader and presidential candidate Mohamed Morsi was overthrown last year.
Former Egyptian President Mohamed Morsi and 129 others have been referred to trial over a jail break during the 2011 uprising.
The trial of ousted Egyptian president Mohammed Morsi has been adjourned until January 8th.
Earlier, the judge halted proceedings after a defiant Morsi interrupted the session to insist he was the "legitimate president" of Egypt.
The deposed leader is charged with inciting violence and murder during protests last December.
Egyptian state television have broadcast footage of Mohammed Morsi in a Cairo courthouse, in the first public sighting of the ousted leader since he was forced out by the army in July.
The footage also showed Morsi stepping out of a white van surrounded by security forces.
Earlier, Morsi told the court that he remains the "legitimate president" of Egypt prompting the judge to adjourn proceedings.
Ousted Egyptian President Mohammed Morsi has defiantly told the court trying him for inciting violence and murder that he remains the "legitimate president" of the country.
Security officials, who spoke to the Associated Press anonymously, said Morsi's comments came in response to a judge calling his name out after identifying him as a "defendant."
Morsi replied: "I am Dr Mohammed Morsi, the president of the republic. I am Egypt's legitimate president."
He added: "I refuse to be tried by this court."
Morsi, who was toppled by the army in July after protests against him, appeared angry and interrupted proceedings forcing the judge to adjourn the case.
The judge in Mohammed Morsi's trial has adjourned proceedings because of the behaviour of defendants.
Egyptian state television said the trial had been halted because defendants' chants were disrupting proceedings.
Security officials inside the courtroom in Cairo said the delay was caused by Mohammed Morsi insisting he would not change into the prison uniform customarily worn by defendants.
The adjournment - likely to last until later today - came after a two-hour delay in the start of the proceedings.
Morsi, who was ousted as leader in July, is charged with inciting the killing of protesters in December.
Egypt's Former President Mohammed Morsi will join 14 other Muslim Brotherhood members in court to face charges of inciting the killing of protesters.
The charges relate to clashes that occurred outside the presidential palace in December 2012.
Security forces are reported to be on high alert following calls from supporters of Morsi for major protests.
Mr Morsi was ousted by the military in July this year after protests against his rule.
But a sit-in protest by his supporters that followed was itself violently broken up by the military, leading to the deaths of hundreds of people.
The ousted Egyptian President Mohammed Morsi has arrived at the venue for his trial, Egypt's news agency reports.