Opposition supporters in Tahrir Square, Egypt
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Egypt opposition groups start Tahrir Sq sit-in

23 November 2012 Last updated at 21:25 GMT

Thousands of Egyptians are protesting over a new decree granting President Mohammed Mursi sweeping powers.

Earlier, Mr Mursi delivered a defiant speech to supporters outside his palace, pledging to protect the country's revolution and lead Egypt to freedom and democracy.

Opposition groups have accused him of behaving like a dictator, and begun a sit-in in Tahrir Square - the symbolic home of the revolution that toppled Hosni Mubarak nearly two years ago.

Jamie Robertson reports.