US Deputy Secretary of State William Burns has arrived in Tripoli. <br /><br />Libyan Prime Minister, Mustafa Abu Shagour aplogised to Burns, in a meeting with him, for an attack on the US consulate in Benghazi in which American ambassador Christopher Stevens died.<br /><br />Both countries are concerned about the security situation in Benghazi after last week's attack on the US consulate.<br /><br />Al Jazeera's Hoda Abdel Hamid reports from Benghazi.
