NATO countries are meeting in Berlin, divided over the need to step up the military campaign against Colonel Gaddafi’s forces in Libya.
The two-day summit of foreign ministers comes as Britain and France have criticised the current action as inadequate. They have called for more support from NATO allies.
They are unlikely to get a change of heart from their German hosts, opposed to intervention from the start, or from Turkey which is strongly against the strikes.
The French foreign minister Alain Juppé has said military pressure must be kept up to convince Gaddafi there is no way out.
NATO, which took over Libyan operations two weeks ago, says it attacked munitions bunkers a few miles outside Tripoli on Wednesday. A loud explosion was heard in the capital and more were reported close to the airport.
Libyan rebels say they have retaken the strategic town of Ajdabiya. Despite heavy fighting in and around Misrata they say they have been making progress against government troops.
The US says it has continued launching strikes at Gaddafi’s air defences despite handing over command of operations to NATO.