NATO have bombed what it says are military barracks in Tripoli belonging to Muammar Gaddafi’s regime during a rare daytime operation on Tuesday.
Alliance aircraft hit compounds belonging to government forces in the Libyan capital in a half-hour long raid just before midday local time.
There was no immediate information on the number of casualties.
NATO warned earlier this week that it would step up its campaign to oust Colonel Muammar Gaddafi, who has controlled Libya for the past four decades.
As military efforts intensifed, Russia’s African envoy Mikhail Margelov arrived in the rebel stronghold of Benghazi for talks with Mustafa Abdul Jalil, the head of the opposition National Council.
In March, Russia abstained from the UN vote authorising the airstrikes on Libya.
Before NATO operations began, Moscow enjoyed close commercial and defence ties with the Gaddafi regime.