British Air Force Typhoon fighter aircraft have operated alongside French warplanes in a joint strike against an hidden munitions depot in Syrian territory operated by the IS group, according to the British defence ministry.
The location, located using surveillance, was believed to be containing munitions and bombs, the release indicated, and was situated in hills just to the north of the ancient city of Palmyra in the heart of Syria.
"Our fighter planes utilized precision-guided Paveway IV munitions to hit a number of entry passages providing entry to the facility... initial indications suggest the strike was effective," officials stated.
There was no sign of any civilian casualties in the strike conducted Saturday night and each participating jet returned safely, the MoD added.
The British jets were backed up by a Voyager tanker plane.
IS - also known as Daesh - imposed extremist governance over parts of Iraq and Syria prior to its 2019 collapse.
"This action demonstrates British leadership, and resolve to stand shoulder to shoulder with our allies, to stamp out any revival of Daesh and their dangerous and violent ideologies in the area," the British Defence Secretary John Healey stated.
UK warplanes have performed surveillance missions over Syria to "prevent any efforts to regroup" of IS subsequent to its routing at the battle of Baghuz in the year 2019, the ministry said.
"I want to thank the personnel of British forces participating in this operation for their expertise and their valour," he added. "They were part of thousands of British personnel on duty over Christmas and New Year. This mission, to remove militants who pose a risk to our safety, demonstrates how our armed forces are always on standby, all year round, keeping Britain secure domestically and strong abroad."
Last December, the American forces executed what it termed a "major assault" targeting Islamic State objectives in the country, following an attack claimed the lives of two US servicemembers and a civilian linguist in the Palmyra area.
The U.N. says Islamic State still maintains between 5,000 and 7,000 militants in Syria and Iraq.