BBC reporting:
Protesters angered by an anti-Islam film made in the US have stormed the grounds of the American embassy in the Yemeni capital, Sanaa.
Police opened fire in an attempt to hold back the crowds, but failed to prevent them gaining access to the compound and setting fire to vehicles.
A number of people were reported to have been injured.
I'll take this down if there's another thread, but there didn't seem to be.
Update 1: live updates on the Guardian here.
Update 2: Reuters:
Hundreds of Yemeni demonstrators stormed the U.S. embassy in Sanaa on Thursday in protest at a film they consider blasphemous to Islam, and security guards tried to hold them off by firing into the air.
Update 3: Telephone interview (Guardian) from Sana'a
here
Update 4: from the Guardian live blog, statement from embassy:
Fortunately no casualties were reported from this chaotic incident. The government of Yemen will honour international obligations to ensure the safety of diplomats and will step up security presence around all foreign missions.