Egypt: Security forces clash with Cairo protesters

Egyptian security forces firing tear gas clashed with more than 5,000 rock-throwing protesters in central Cairo late Tuesday, leaving dozens injured in the latest unrest to rattle the country, witnesses and medical officials said.

Clouds of tear gas and the wail of police sirens engulfed Tahrir Square as lines of security forces in riot gear battled to regain control of the central plaza from the demonstrators, many of them family members of the more than 850 people killed during the revolution that toppled Egypt's longtime ruler, Hosni Mubarak. (AP)