US ambassador to Libya 'killed in Benghazi attack'
Libyan officials say the American ambassador, John Christopher Stevens, has been killed in an attack on the US consulate in the eastern city of Benghazi.
Reports say he was among four people killed, although the US government has yet to confirm the details.
Gunmen stormed the building as part of protests against a film about the Prophet Mohammed.
Rana Jawad reports from the Libyan capital, Tripoli.