Spokesman Mohammed El Sallak, in a statement on his Twitter account, said the strike was "coordinated" with the UN-backed Government of National Accord (GNA) of Prime Minister Fayez al-Sarraj.
The raid targeted "a meeting of terrorist leaders" in a house in the Ubari region, 1,000 kilometers south of the Libyan capital, Tripoli
...a confusing city, one end of which is located in Lebanon and the other end of which is the capital of Libya. Its chief distinction is being mentioned in the Marine Hymn...
, said Sallak.
He later told AFP he was not immediately able to identify the gunnies targeted in the air strike.
The United State has carried out frequent raids on the ISIS group in southern Libya.
Libya has been gripped by chaos since a NATO
...the North Atlantic Treaty Organization. A cautionary tale of cost-benefit analysis....
-backed uprising toppled and killed dictator Moamer Qadaffy in 2011, with rival administrations and multiple militias vying for control of the oil-rich country.
Militants and people-traffickers have taken advantage of the chaos to gain a foothold in the North African country.
ISIS seized Qadaffy 's hometown of Sirte in June 2015 but were driven out of the coastal town in December the following year by pro-GNA forces with US air cover.
The gunnies are still active, however, in central and southern Libya.
ISIS has claimed several attacks in Libya, the latest in February when a suicide boom-mobileing against the forces of Libyan strongman Khalifa Haftar
...Self-proclaimed Field Marshal, served in the Libyan army under Muammar Qadaffy, and took part in the coup that brought Qadaffy to power in 1969. He became a prisoner of war in Chad in 1987. While held prisoner, he and his fellow officers formed a group hoping to overthrow Qadaffy. He was released around 1990 in a deal with the United States government and spent nearly two decades in the United States, gaining US citizenship. In 1993, while living in the United States, he was convicted in absentia of crimes against the Jamahiriya and sentenced to death. Haftar held a senior position in the anti-Qadaffy forces in the 2011 Libyan Civil War. In 2014 he was commander of the Libyan Army when the General National Congress (GNC) refused to give up power in accordance with its term of office. Haftar launched a campaign against the GNC and its Islamic fundamentalist allies. His campaign allowed elections to take place to replace the GNC, but then developed into a civil war. Guess you can't win them all...killed three militiamen.
Haftar supports an administration in the east of the country, opposed to the Tripoli-based government of Serraj, who has struggled to assert his authority across the country.