Protesters angered by a film mocking Islam have attacked the German and British embassies in the Sudanese capital, Khartoum.
Demonstrators started fires and tore down the German flag, raising an Islamist banner in its place.
In the Lebanese city of Tripoli, one person was killed as demonstrators set fire to a KFC fast-food restaurant.
Five people were injured in protests in Cairo, state media said. There are also clashes in the Yemeni capital, Sanaa.