Egypt's bloodiest day in decades leaves hundreds dead
Violence between supporters of ousted president Mohamed Morsi and security forces has left 235 civilians and 43 police officers dead - Egypt's bloodiest day in decades.
Another 2,001 people have been wounded in the clashes, according to the country's health ministry.
ITV News International Correspondent John Irvine reports:
The Muslim Brotherhood, the party of deposed leader Morsi, claimed the death toll was far higher in what it described as a "massacre."
International Correspondent John Irvine said today's bloodshed was the third massacre in Cairo in the last six weeks.
The violence started when the government made the decision to break up protest camps in Cairo.
Morsi's supporters had been camped at two major sites in the capital since before he was toppled on July 3, and had vowed not to leave the streets until he was returned to power.
Egypt's interim Prime Minister Hazem Beblawi defended the operation, saying it was not an easy decision but the authorities had to "restore security."
The country's vice president Mohamed ElBaradei resigned from his post as a protest against the violent crackdown on pro-Morsi sit-in camps.
Egypt's leaders also declared a one-month state of emergency, giving the military the sort of power they wielded for decades before a pro-democracy uprising in 2011.
An overnight curfew, which will run from 7pm until 6am in 11 of Egypt's 27 provinces, including major cities Cairo, Alexandria and Suez, has also been put in place.
The decision to disperse the camps ended a six-week stand-off but defied international calls for restraint to be shown.
David Cameron said that a "compromise" needed to be struck between the military leaders and supporters of Morsi and added that "violence is not going to solve anything."
US Secretary of State John Kerry said today's events were "deplorable" and that the bloodshed was a "serious blow to reconciliation."
He also called for the state of emergency to "end as soon as possible" and said "violence will not create a roadmap for Egypt's future."
Mr Kerry will now review the almost £1 billion of American military aid the United States sends to Egypt.
ITV News Washington Correspondent Robert Moore reports that aid may be America's only bargaining chip in trying to influence events in Egypt.
There were conflicting reports on whether senior Brotherhood politicians Mohamed El-Beltagi and Essam El-Erian had been arrested but the former's 17-year-old daughter was among today's dead.
Before the violence today, Beltagi had warned: "I swear by God that if you stay in your homes, Abdel Fattah al-Sisi (Egypt's Commander-in-Chief) will embroil this country so that it becomes Syria.
"Abdel Fattah al-Sisi will push this nation to a civil war so that he escapes the gallows."