Following are the latest political and military developments in the Libyan crisis.
* British and French attack helicopters struck inside Libya for the first time overnight on Saturday, hitting targets in the oil port of Brega as NATO forces stepped up their air war against Muammar Gaddafi.
* British Foreign Secretary William Hague visited rebel stronghold Benghazi in eastern Libya on Saturday.
* Rebel fighters repelled an attack by Gaddafi's forces against one of their checkpoints on the eastern edges of the rebel-held city of Misrata on Saturday, a Reuters journalist there said. One rebel was killed and another was wounded in the clashes, medical workers said.
* Gaddafi's forces also shelled Nalut and Zintan, rebel spokesmen said by phone from the rebel-held Western Mountains towns. At least 10 people were wounded in Nalut.
* NATO said it conducted 130 air sorties on Saturday, 54 of them strike sorties that aim to identify and hit targets but do not always deploy munitions.
It said key targets hit on Saturday included:
-- One surface-to-air missile storage facility, one command and control facility and one military installation near Tripoli;
-- One rocket launcher, two checkpoints and one barracks near Brega.
* Since NATO took over command of air strikes on March 31, its aircraft have conducted a total of 9,778 sorties, including 3,694 strike sorties.
* Eighteen ships under NATO command are patrolling the central Mediterranean Sea to enforce a U.N. arms embargo. On Saturday, 12 vessels were hailed to determine destination and cargo. One was boarded but it was not diverted.
A total of 1,168 vessels have been hailed, 72 boarded and eight diverted since the start of the arms embargo.
(Reporting by Justyna Pawlak; Editing by David Cowell)