Deaths in renewed Cairo violence

Egypt's prime minister has apologised for the fighting between pro and anti-government demonstrators in Cairo's Tahrir Square, which killed five people and wounded several hundred.

Ahmed Shafiq pledged to investigate the violence, calling it a "fatal error".

Pre-dawn gunfire lasted for two hours as anti-government demonstrators tried to stay in control of the square. The protesters are demanding that President Hosni Mubarak, who has ruled for 30 years, step down immediately.

Humphrey Hawksley reports.