CAIRO — Clashes erupted Sunday across much of Egypt between security forces and supporters of the ousted president, leaving 51 killed, as rival crowds of supporters of the military and backers of the ousted Islamist president, Mohammed Morsi, poured into streets around the country to mark a major holiday.
The capital, Cairo, saw multiple scenes of chaos as street battles raged for hours in some neighborhoods, with Morsi supporters firing birdshot and throwing firebombs at police who responded with gunshots and tear gas.
In some cases, promilitary crowds set upon supporters of the former president, with the two sides pelting each other with rocks. By late evening, several parts of the city resembled combat zones, with fires burning and gunfire piercing the air. Full story for BostonGlobe.com subscribers.