Clashes among police, supporters of ousted President Mohammed Morsi and armed vigilantes have killed more than 800 people in Egypt since Wednesday. A timeline of key events:
Aug. 14 — Riot police backed by armored vehicles and bulldozers clear two sprawling encampments of supporters of ousted President Mohammed Morsi, sparking clashes that kill at least 638 people. The presidency declares a monthlong state of emergency across the nation as Vice President Mohamed ElBaradei resigns in protest over the assaults.
Aug. 15 — The Interior Ministry authorizes police to use deadly force against protesters targeting police and state institutions after Islamists torch government buildings, churches and police stations in retaliation against the crackdown on their encampments.
Aug. 16 — Heavy gunfire rings out throughout Cairo as tens of thousands of Muslim Brotherhood supporters clash with armed vigilantes in the fiercest street battles to engulf the capital since the country's Arab Spring uprising. The clashes kill 173 people nationwide, including police officers.
Aug. 17 — Security forces raid a mosque in Egypt's capital where protesters supporting the nation's ousted president had been barricaded inside overnight. Meanwhile, the Muslim Brotherhood's political arm announces that the son of its spiritual leader Mohammed Badie had been killed in clashes the day before.
Here's a gallery of photos from the last four days in Egypt.
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