RAF Typhoon jets have operated alongside French aircraft in a coordinated attack against an underground arms cache in Syria operated by the Daesh militant organization, according to the British defence ministry.
The location, identified by reconnaissance, was believed to be storing arms and explosives, the statement said, and was situated in mountains just north of Palmyra in the heart of Syria.
"The RAF jets utilized Paveway IV guided bombs to strike a number of entry passages providing entry to the depot... initial indications suggest the strike was effective," the MoD said.
There was no indication of any civilian impact in the strike conducted Saturday night and each participating jet made a safe return, the ministry further stated.
The Typhoon fighters were supported by a Voyager tanker plane.
IS - referred to as the so-called Islamic State - established jihadist rule over large swathes of both Syria and Iraq prior to its 2019 collapse.
"This action underscores our UK leadership, and determination to work closely with our allies, to eliminate any revival of the terrorist group and their violent and radical beliefs in the area," Britain's Defence Chief John Healey stated.
UK warplanes have carried out patrols over Syria to "forestall any efforts to regroup" of the group subsequent to its military defeat at the climactic battle in Baghuz in 2019, the authorities noted.
"I extend gratitude to every member of our armed forces who took part in this operation for their expertise and their valour," the Defence Secretary said. "Including them were a great many UK service members deployed over Christmas and New Year. This mission, to remove dangerous terrorists who pose a risk to our security, shows how our armed forces are always on standby, continuously, protecting the UK at home and strong abroad."
Last December, the United States armed forces conducted what it termed a "massive strike" on Islamic State objectives in Syria, subsequent to an assault resulted in the deaths of two US troops and a civilian linguist in Palmyra.
The U.N. says IS still has roughly 5-7 thousand combatants in Syria and Iraq.
