LONDON - Libyan authorities have been “extremely apologetic” over the desecration of Commonwealth graves in the eastern city of Benghazi, a British Foreign Office minister said Sunday. Jeremy Browne said the incidents were “appalling” and people would be “shocked” by the footage of the February 24 and 26 attacks. “The Libyan authorities themselves are shocked too,” he told Sky News television. “We have had direct dealings with them. They have been extremely apologetic and made a very strong commitment they will get to the bottom of this happening. They will try and do everything they can to resolve it. Video footage shows a mob smashing up headstones and a cross of sacrifice, saying “they are dogs”.