Egypt imposes curfew, lockdown

Protesters clash with a Egyptian military solider outside the Defense Ministry in Cairo, Egypt, Wednesday, May 2, 2012. Suspected supporters of Egypt's military rulers attacked predominantly Islamist anti-government protesters outside the Defense Ministry in Cairo Wednesday, setting off clashes that left more than ten people dead as political tensions rise three weeks before crucial presidential elections. (AP Photo)

Egypt's military has imposed a new curfew after 300 people were detained following deadly clashes with anti-army protesters, amid spiraling tension ahead of a presidential poll.