(Reuters) - Following are the latest available details of military activity in Libya
* Russia believes Libyan leader Muammar Gaddafi should quit and could help broker his departure, a senior Russian official said on Friday in an important boost to NATO powers bent on ending his 41-year rule.
* Russian President Dmitry Medvedev said Russia would not give shelter to Gaddafi but other countries might.
* French President Nicolas Sarkozy said it was not possible to mediate with Gaddafi, even as Russia said it was ready to help negotiate his exit.
* Sarkozy said on Friday he still planned to visit the eastern Libyan rebel stronghold of Benghazi, preferably in a joint visit with British Prime Minister David Cameron.
* Scores of young men in the mountains of western Libya have disappeared at the hands of forces loyal to Gaddafi, Amnesty International said.
* Cameron said on Friday NATO’s war to oust Gaddafi was entering a new phase and that the deployment of British helicopters would turn up pressure.
* Libya’s former central bank governor, Farhat Omar Bin Guidara, on Friday announced that he was joining rebels seeking to overthrow Gaddafi.
* French and British helicopters will be put into action in Libya under NATO command as soon as they are ready, the commander of the alliance’s operation said.
* Rebels and forces loyal to Gaddafi engaged in fierce fighting on the Western outskirts of the city of Misrata on Friday, a Reuters reporter said.
* The rebel-held town of Zintan came under intense rocket attack overnight from forces loyal Gaddafi, a foreign doctor in the town told Reuters.
* NATO said it conducted 140 air sorties on Thursday, 54 of them strike sorties that aim to identify and hit targets but do not always deploy munitions.
It said targets attacked on Thursday included:
— One armoured vehicle store in Tripoli
— One surface-to-air missile store, two command & control nodes in the vicinity of Tripoli
— One ammunition store and one command-and-control node in the vicinity of Sirte
— One ammunition store and four aircraft in the vicinity of Zuwarah
— One rocket launcher, three self-propelled artillery pieces and one truck-mounted gun in the vicinity of Misrata
— One surface-to-air missile launcher in the vicinity of Al Khums:
— One ammunition store in the vicinity of Hun
* Twenty-one ships under NATO command are patrolling the central Mediterranean Sea to enforce a U.N. arms embargo. On Thursday, 10 vessels were hailed to determine destination and cargo. Three were boarded but none diverted.
* Since the start of the arms embargo operations, 1,060 vessels have been hailed, 56 boarded and seven diverted.
Reporting by David Brunnstrom