埃及军民发生冲突 50人死亡
At least 50 people have been killed and scores hurt in Egypt in clashes between police and supporters of the deposed Islamist President Mohammed Morsi.
埃及警方与前总统穆罕默德·穆尔西的支持者发生冲突，至少50人死亡、数十人受伤。
More than 200 members of the Muslim Brotherhood were arrested in Cairo, where most of the deaths were reported.
Supporters of Mr Morsi marched in several cities, as the military-backed government marked the 40th anniversary of the 1973 Arab-Israeli war.
Morsi supporters say he was deposed in a military coup in July.
'Critical time'
Hundreds of people had gathered in Cairo's Tahrir Square to celebrate the anniversary.
Jets and Apache helicopters flew overhead in formation, as part of a grand display of military hardware by the government.
The crowd cheered the flypasts, a number of people carrying portraits of defence chief Gen Abdel Fattah al-Sisi. Some want him to stand as Egypt's next president.
But the BBC's Quentin Sommerville in Cairo says supporters of Mr Morsi also took to the streets in their thousands, trying to make their way to the square and calling Gen Sisi a murderer.
Security forces used tear gas and fired into the air to stop them.