SANAA (AFP) -- The British embassy in Sanaa has been closed until security at the building has been improved in the wake of a rebel attack on the U.S. mission, which killed 16 people.

""The embassy has closed its doors until further notice and has suspended all the services that it provides,"" a source, who requested anonymity, told AFP.
A British foreign office spokeswoman in London said: ""We have temporarily suspended operations at our embassy until additional security measures are put in place.""
The decision comes as the Yemeni authorities tighten security around foreign diplomatic facilities after an Al-Qaeda-linked group, the Organization of Islamic Jihad, claimed responsibility for Wednesday's attack and threatened more.
Militants detonated a booby-trapped car before firing a volley of rockets at the heavily fortified U.S. mission killing six soldiers, six assailants and four others, including an American and her Yemeni husband.
The group vowed to continue attacks ""against Western interests,"" Yemeni public figures and the Saudi embassy unless militants being held by Yemeni authorities were released.
It also called for the closure of the U.S. and British missions in the Arabian peninsula republic, the ancestral homeland of Saudi-born Al-Qaeda chief Osama bin Laden, who remains at large seven years after the September 11 attacks.
A Yemeni security source said on Thursday that authorities had rounded up 25 suspects over the attack, which was the second strike on the compound in six months, and the latest in a spate of attacks against Western interests and oil installations in impoverished Yemen.
The Yemeni interior ministry said on Saturday that the suspects were continuing to be interviewed in connection with the investigation.
A statement by the ministry added that ""the different security services and elements had put in place a total state of alert"" and that ""security measures around diplomatic missions has been reinforced following terrorist threats.""