British Air Force Typhoon fighter aircraft have operated alongside French aircraft in a coordinated attack against an hidden munitions depot in Syrian territory operated by the IS group, according to the British defence ministry.
The location, located using reconnaissance, was assessed as storing arms and explosives, the statement said, and was situated in mountains just north of Palmyra in Syria's central region.
"The RAF jets employed laser-guided Paveway IV weapons to strike a series of approach shafts leading to the depot... initial indications indicate the target was engaged successfully," officials stated.
There was no sign of any harm to civilians in the strike late on Saturday and all the aircraft made a safe return, the ministry further stated.
The British jets were backed up by a Voyager refuelling tanker.
Daesh - alternatively referred to as ISIS - enforced extremist governance over large swathes of Syria and Iraq before its territorial defeat in 2019.
"This strike demonstrates our UK leadership, and resolve to operate in unison with allied nations, to eliminate any re-emergence of IS and their violent and radical beliefs in the region," Britain's Defence Chief John Healey remarked.
RAF aircraft have carried out overwatch operations over Syrian airspace to "deter any attempted comeback" of IS subsequent to its military defeat at the battle of Baghuz in 2019, the MoD reported.
"I must thank every member of British forces who took part in this mission for their professionalism and their courage," the Defence Secretary commented. "They were among a great many British personnel deployed over Christmas and New Year. This operation, to eliminate terrorist threats who endanger our way of life, shows how our armed forces are prepared to act, all year round, protecting the UK at home and strong abroad."
During December, the American forces executed what it called a "major assault" against Daesh sites in Syria, following an ambush claimed the lives of two American soldiers and a local interpreter in the Palmyra area.
The U.N. reports Daesh still maintains between 5,000 and 7,000 combatants in Syria and Iraq.