Egypt's military rulers have imposed an overnight curfew after a day of fighting between protesters and troops in the country's capital.

Almost 300 people have been injured in the clashes and one soldier was killed. Demonstrators rallying outside the ministry of defence were angry about the killing of 11 protesters on Wednesday.

Protesters gathered at al-Abesseya square had been trying to march to the defence ministry.

They were blocked by security forces firing tear gas and water cannon, reportedly after they tried to breach the barriers on the road to the ministry.

Many were pushed back into neighbouring streets and the nearby Ain Shams university.

State media said some people who had been protesting peacefully in Tahrir Square had then started to march towards the Defence Ministry.

Al Jazeera's Steve Chao reports.