KHARTOUM/SANAA  - Sudan has rejected a US request to send special forces to protect its embassy in Khartoum following violent protests against an American-made film mocking Islam, the official SUNA news agency said.

Meanwhile, the Yemeni parliament said it rejected the presence of US Marines in Sanaa to boost security at the American embassy.

"The US government has expressed its wish to send special forces to protect its embassy in Khartoum after the events that took place in most Muslim countries," SUNA quoted a foreign ministry spokesman as saying.

But Sudanese Foreign Minister Ali Karti "refused to accommodate these forces," he added.

The United States had made the request on Friday "during a phone call between a deputy of the US secretary of state (Hillary Clinton)" and Karti, said the spokesman.

The minister had explained his decision by saying that Sudan was capable of "protecting its guests in diplomatic representations," he added.

The Pentagon has said it is examining the possibility of sending Marines to Sudan after deploying them in Yemen and Libya, where ambassador Chris Stevens was among four Americans killed in an attack on a US consulate on Tuesday.

In a statement, the Yemeni parliament affirmed its "rejection of any form of foreign presence" in Yemen, saying it was up to the government to provide security for foreign embassies.

Pentagon spokesman George Little told reporters on Friday the United States has deployed a Marine anti-terrorism unit to Sanaa to help protect the American embassy in the face of angry demonstrations. "This is partly as a response to events over the past two days at our embassy in Yemen but it's also in part a precautionary measure," he said. "A FAST (Fleet Antiterrorism Security Team) platoon is now on the ground in Sanaa," with a contingent of about 50 US Marines, Little said.

On Friday, Yemeni security forces fired warning shots, tear gas and water cannon to disperse protesters about 500 metres (yards) from the embassy compound who burned the American flag and called for the expulsion of the US ambassador.