Breaking: US consulate in Libya stormed.

Militiamen in Libya have stormed the US consulate in Benghazi, the country's second largest city.

Reports say they were protesting against a US-made film that is allegedly insulting to the Prophet Muhammad, and set fire to the building.

The building is said to have burnt down. It is thought nobody was in the consulate at the time.

Earlier, protesters in Egypt breached the wall at the US embassy in Cairo and tore down a flag over the film.

The film that sparked the protest is said to have been produced by US pastor Terry Jones and co-produced by some Egyptian Copt expatriates.

In the Cairo incident, the American flag, which was flying at half mast to mark the 9/11 attacks, was replaced by an Islamist banner.

Thousands of protesters had gathered outside the US embassy in the Egyptian capital.

Egyptian protesters condemned what they said was the humiliation of the Prophet of Islam under the pretext of freedom of speech.

UPDATE:

A US official has been killed and others wounded after militiamen stormed the US consulate in the Libyan city of Benghazi, security officials say.

It is believed the protest was held over a US-produced film that is said to be insulting to the Prophet Muhammad.

The building is said to have burnt down after being set alight by protesters. It is thought nobody was in the consulate at the time