President Obama has confirmed that his ambassador to Libya - and three other officials - were killed in the city of Benghazi. Christopher Stevens was visiting the US consulate, when an armed mob stormed the compound, in protest at an American film which is being called an insult to Islam. To discuss the attacks on American diplomats RT talks to Patrick Henningsen - a geopolitical analyst for the "UK Column" current affairs web site.
The wave of anti-American protests is gathering strength as it sweeps across the Muslim world. Police in Yemen have reportedly fired warning shots at another mob of protesters heading for the US embassy, while similar clashes rage in the Egyptian capital. RT's Paula Slier reports from Cairo.