Scores have been hurt after battles between police and hundreds of Muslims in Bangladesh's capital Dhaka. They were protesting against a film produced in the US that disparages the Prophet Mohammed.
Police in the city fired tear gas and used batons to disperse the stone-throwing demonstrators, who were from around a dozen Islamic groups.
Police said the clash erupted on Saturday morning when they tried to stop the protest.
Witnesses said the protesters burned several vehicles, including a police van, during the battles.
The protesters announced a nationwide general strike on Sunday to protest against the police action.