New police footage released of London riots

The Metropolitan Police has released footage from last week's disturbances on the streets of London in the hope the public will be able to help identify some of the rioters.

More than thirty people have been arrested following demonstrations against plans to raise university tuition fees for students.

The new footage shows demonstrators in the area around Parliament Square.

Detectives say they have received more than fifty calls from the public following their appeals for help.