British Air Force Typhoon FGR4s have joined forces with French warplanes in a joint strike targeting an subterranean weapons facility in Syria used by the IS group, per a report from the UK Ministry of Defence.
The site, located using reconnaissance, was believed to be containing munitions and bombs, the announcement noted, and was positioned in mountains just north of the ancient city of Palmyra in Syria's central region.
"Our aircraft used precision-guided Paveway IV munitions to hit a series of access tunnels providing entry to the depot... initial indications suggest the strike was effective," the ministry announced.
There was no sign of any harm to civilians in the strike on Saturday evening and each participating jet returned to base without incident, the MoD added.
The Typhoon FGR4s were backed up by a Voyager aerial refuelling aircraft.
IS - alternatively referred to as ISIS - imposed extremist governance over parts of both Syria and Iraq until 2019.
"This operation shows our UK leadership, and determination to work closely with allied nations, to stamp out any revival of IS and their harmful and extremist ideologies in the area," UK Defence Secretary John Healey remarked.
British military aircraft have performed surveillance missions over Syria to "forestall any attempted comeback" of Islamic State following its defeat at the Baghuz confrontation in 2019, the MoD reported.
"I want to thank all the members of the UK armed forces participating in this operation for their expertise and their valour," Healey commented. "They were among thousands of British troops stationed over the holidays. This action, to eliminate dangerous terrorists who endanger our safety, highlights how UK forces are always on standby, all year round, keeping Britain secure at home and strong abroad."
Last December, the United States armed forces conducted what it described as a "massive strike" targeting Daesh sites in the country, following an ambush resulted in the deaths of two US servicemembers and a civilian interpreter in Palmyra.
The United Nations estimates IS still has an estimated 5,000 to 7,000 militants in Iraq and Syria.