May 19 (Reuters) - Following are the latest available details of military activity in Libya:
* The head of the NATO military alliance said on Thursday military and political pressure were weakening Muammar Gaddafi’s hold on power in Libya and would eventually topple him.
* Beset by apparent defections, perhaps personally targeted by NATO and indicted for war crimes, Muammar Gaddafi is finding Libya’s war turning against him — but with nowhere obvious to go he may hang on regardless, analysts say.
* Rebels fighting to overthrow Gaddafi have launched a television channel to promote their cause, but part of their broadcast is blocked by a regional satellite, a rebel media official said.
* The Tunisian Interior Ministry was quoted on Wednesday by pan-Arab television channels as denying that the wife and daughter of Muammar Gaddafi crossed into Tunisia several days ago.
* NATO has adopted a more aggressive approach to air strikes in Libya, Western officials say, after two months of attacks on Gaddafi’s government have failed to prompt him to resign.
* Libya freed four foreign reporters on Wednesday who had been charged with entering the country illegally and said it was hard for its army to distinguish between journalists and people working with rebels.
* NATO said it conducted 159 air sorties on Wednesday, 53 of them strike sorties that aim to identify and hit targets but do not always deploy munitions.
* Since NATO took over command of air strikes on March 31, its aircraft have conducted 7,262 sorties, including 2,808 strike sorties.
It said key targets on Wednesday included:
— One military training facility in the vicinity of Tripoli
— Three command-and-control nodes in the vicinity of Zuwarah
— Two tanks and one self-propelled gun in the vicinity of Misrata
— One ammunition store in the vicinity of Mizdah
* Twenty-one ships under NATO command are patrolling the central Mediterranean Sea to enforce a U.N. arms embargo. On Wednesday 14 vessels were hailed to determine destination and cargo. Two ships were boarded, but neither was diverted.
* Since the beginning of the arms embargo operations, 968 vessels have been hailed, 43 boarded and five diverted. (Reporting by David Brunnstrom)