Factbox: Latest military activity in Libya

BRUSSELS (Reuters) - Following are the latest available details of military activity in Libya.

* A group of Western powers and Middle Eastern states meeting on Libya's future called for the first time on Wednesday for Muammar Gaddafi to step aside, but NATO countries squabbled publicly over stepping up air strikes to help topple him.

* French Foreign Minister Alain Juppe said the coalition force in Libya must keep up strong military pressure on Gaddafi's troops in order to convince him there is no way out.

* A senior French official said U.S. re-engagement in military strikes would help the operation and countries including Italy, Spain, the Netherlands and Sweden could do more to assist operations.

* The Pentagon said U.S. fighter jets have continued to conduct strikes on Gaddafi's air defenses even after NATO took over command of Libya operations.

* Britain wants NATO to have a more powerful strike force in Libya but whether the alliance steps up attacks will depend on what Gaddafi's forces do, Foreign Secretary William Hague said.

* NATO conducted an airstrike against munitions bunkers 13 km (8 miles) from the Libyan capital Tripoli on Wednesday, a NATO official said. A loud explosion was heard in Tripoli on Wednesday afternoon and the Al Arabiya television station reported two explosions close to Tripoli's airport.

* Libyan rebels reported heavy fighting in central Misrata and on the eastern side of the coastal city on Wednesday, but said they were making progress against government troops.

* NATO warplanes launched airstrikes on the Libyan cities of Al-Aziziyah and Sirte on Wednesday, Libya's state-run Al-Jamahiriya TV said.

* NATO aircraft destroyed another 16 tanks, an anti-aircraft gun and a pickup truck in operations in Libya on Tuesday, the alliance said. It said 12 tanks were destroyed in the vicinity of Misrata, and another four, the pickup truck and the anti-aircraft gun southeast of the town of Sirte after alliance planes flew 159 sorties, including 60 strike missions.

* NATO took command of Western military operations in Libya on March 31 and has about 200 aircraft at their disposal. It says its aircraft have conducted a total of 2,038 air sorties of which 832 were strike sorties. NATO defines strike sorties as missions intended to identify and engage targets, but which do not always involve use of munitions.

* NATO has reported the destruction of 74 of Gaddafi's tanks since Saturday, as well as anti-aircraft guns and ammunition bunkers.

* A NATO official said the alliance was still short of about 10 aircraft a day to conduct air strikes.

* Of the 28 NATO states, only France, Britain, the United States, Belgium, Canada, Norway and Denmark have been conducting airstrikes. Others have contributed aircraft and ships to supporting operations, enforcing a no-fly zone and an arms embargo.

* Eighteen NATO vessels have been patrolling the Mediterranean to enforce a U.N.-mandated arms embargo. On Tuesday 28 Vessels were hailed to determine destination and cargo. No boarding was conducted.

* A total of 298 vessels have been hailed and 6 have been boarded since the beginning of arms embargo operations.

(Reporting by David Brunnstrom; Editing by Peter Graff)