UK ambassador's Tripoli residence 'destroyed'inue reading the main story
It said in a statement that it believed other foreign residences had also been attacked.
The Foreign Office has said it is investigating reports that the residence of the British ambassador in Tripoli has been "destroyed".
"Such actions, if confirmed, would be deplorable as the Gaddafi regime has a duty to protect diplomatic missions," said the Foreign Office It added that the UK currently had no diplomats in the Libyan capital Instead the UK has a diplomatic presence in Benghazi, the largest city in the rebel-held east of the country.
'Absolutely clear'The news of the attack on the British residence comes after the Libyan government said a Nato air strike on Tripoli had killed a son of Colonel Muammar Gaddafi.
Saif al-Arab and three of Col Gaddafi's grandchildren are reported to have died at their villa in the Bab al-Aziziya compound.
A spokesman for the regime said the Libyan leader himself was in the villa at the time but was unharmed.
Nato said it had hit a "known command-and-control building" in the area, adding it did not "target individuals".
Prime Minister David Cameron also defended Nato's operations in Libya.
"The targeting policy of Nato and the alliance is absolutely clear," he told the BBC.
"It is in line with UN resolution 1973, and it is about preventing a loss of civilian life by targeting Gaddafi's war-making machine."
Mr Cameron did not comment on whether British aircraft were involved in the attack that reportedly killed Col Gaddafi's son.
