(Supporters of the Jamaat-ud-Dawa Islamic organization hold placards while taking part in an anti-American demonstration in Lahore, Pakistan on September 14, 2012.  REUTERS/Mohsin Raza)

Fury about a film that insults the Prophet Mohammad tore across the Middle East on Friday with protesters attacking U.S. embassies and burning American flags as the Pentagon rushed to bolster security at its missions.

The obscure California-made film triggered an attack on the U.S. consulate in Libya’s city of Benghazi that killed the U.S. ambassador and three other Americans on Tuesday, the anniversary of the Sept 11, 2001 al Qaeda attacks on the United States.

In Tunis, at least five people were wounded by police gunfire near the U.S. embassy, and a Reuters reporter said a big fire had erupted within the embassy compound. Protesters had earlier leapt over the compound wall.

Witnesses said Sudanese police fired tear gas at thousands of protesters to stop them approaching the U.S. embassy outside Khartoum, but some jumped over the wall. A Reuters reporter heard gunfire from the scene.