The RAF is "entirely comfortable" with the success of bombing raids over Libya.
Tornado GR4 fast jets and a Royal Navy Trafalgar-class submarine were involved in striking "high value targets" in the capital Tripoli and other parts of Libya as the international community swung into action against Muammar Gaddafi.
Detailing British involvement in the coalition's efforts against Gaddafi's forces, Air Vice-Marshal Phil Osborn told a briefing in London: "We are entirely comfortable with the way last night's mission went in terms of success."
He would not confirm if the Libyan air force had been destroyed but said: "It's fair to say that there is a threat, we always have to be aware that there may remain a threat."
Tornados flew from RAF Marham as part of an eight-hour, 3,000 mile round mission, the longest since the Falklands conflict.
The jets were supported by VC10 and Tristar air to air refuelling aircraft.
The jets were refuelled four times during the mission, Air Vice-Marshal Osborn added.
