File photo of an Apache WAH64D helicopter taking part in Exercise Crimson Eagle in the Arizona desert.
An Apache WAH64D helicopter takes part in Exercise Crimson Eagle in the Arizona desert in this September 29, 2006 file photograph. British and French attack helicopters struck inside Libya for the first time overnight on June 4, 2011, hitting targets in the oil port of Brega as NATO forces stepped up their air war against Muammar Gaddafi. Picture taken September 29, 2006 . REUTERS/Graeme Main

Libyan capital Tripoli and its eastern suburbs were rocked by fresh NATO air-strikes at around 2:30 am local time on Sunday, an AFP report said.

At around 6:30 pm Saturday, 2 powerful but distant blasts were felt in the centre of the capital, which was followed by several others a few minutes later, the AFP report said.

According to witnesses, the explosions came from Tajura, a frequent target of NATO since the international alliance began military operations against Libya on March 31.

British Foreign Minister William Hague met leaders of rebels on Saturday fighting to expel Libyan leader Muammar Gaddafi after NATO deployed attack helicopters for the first time.

We are here today for one principal reason -- to show our support for the Libyan people and for the National Transitional Council, the legitimate representative of the Libyan people, AFP quoted Hague as saying.