Western countries have appealedfor an end to violent protests targeting their embassies, sparked by a filmmocking the Prophet Muhammad.
The EU urged leaders in Arab andMuslim countries to "call immediately for peace and restraint". TheUS is sending marines to defend its embassy in Khartoum and has called on Sudanto protect foreign diplomats.
At least seven people died inprotests in Khartoum, Tunis and Cairo on Friday and there are fears of furtherunrest. Protests in Egypt have spread, with demonstrators breaking into a baseholding multi-national peacekeepers in Sinai, and clashes outside the Americanconsulate in the coastal city Alexandria.
In Afghanistan, the Taliban saidtheir attack on the huge Camp Bastion Nato base, in which two US marines werekilled, was carried out in response to the film.
Marines were deployed to Libya onWednesday after the attack that killed the US ambassador and three otherAmericans and to Yemen on Friday after violence in Sanaa.
On Friday, US Vice-President JoeBiden called his Sudanese counterpart, Ali Osman Taha, to express concern overthe security of the US and other Western embassies in Khartoum."Vice-PresidentBiden reaffirmed the responsibility of the government of Sudan to protectdiplomatic facilities and stressed the need for the government... to ensure theprotection of diplomats in Khartoum," a White House statement said.
A crowd of several thousandattacked the US embassy in Khartoum on Friday, and state radio said threeprotesters had been killed in clashes with security forces. The German and UKembassies in Khartoum were also attacked, although the controversial film hasno known links to either country.
European Commission PresidentJose Manuel Barroso condemned the attacks as unacceptable and against "therules of the civilised world." EU foreign policy chief Catherine Ashton urged"national authorities in all countries concerned to swiftly ensure thesecurity of diplomatic missions and protect diplomatic staff".
"It is vitally importantthat leaders across the affected regions should call immediately for peace andrestraint, as has already been the case in many countries."
German Foreign Minister GuidoWesterwelle said the Sudanese ambassador in Berlin had been summoned on Fridayand "unequivocally reminded of his government's duty to protect diplomaticmissions".
Protests against the film -Innocence of Muslims - began on Tuesday in the Egyptian capital Cairo.
The film depicts the ProphetMuhammad as a womaniser and leader of a group of bloodthirsty men.
However, its exact origin and themotivation behind the film's production are still unclear.