RAF Typhoon fighter aircraft have joined forces with France's air force in a joint strike targeting an subterranean weapons facility in Syria used by the IS group, as stated by the UK's MoD.
The location, identified by reconnaissance, was believed to be storing arms and explosives, the release indicated, and was situated in hills just above the historic site of Palmyra in Syria's central region.
"Our aircraft used precision-guided Paveway IV munitions to hit a number of entry passages providing entry to the depot... preliminary assessments suggest the strike was effective," the MoD said.
There was no indication of any civilian casualties in the operation late on Saturday and every plane involved returned safely, the MoD added.
The Typhoon fighters were assisted by a Voyager aerial refuelling aircraft.
IS - referred to as the so-called Islamic State - established militant control over large swathes of Iraq and Syria before its territorial defeat in 2019.
"This operation underscores our UK leadership, and resolve to operate in unison with our partners, to eradicate any resurgence of IS and their violent and radical beliefs in the Middle East," UK Defence Secretary John Healey remarked.
British military aircraft have carried out surveillance missions over Syrian airspace to "prevent any efforts to regroup" of IS after its defeat at the climactic battle in Baghuz in the year 2019, the authorities noted.
"I extend gratitude to all the members of British forces who took part in this mission for their professionalism and their courage," he said. "They were among a great many UK service members stationed over the holidays. This mission, to remove militants who pose a risk to our way of life, highlights how UK forces are always on standby, continuously, protecting the UK within its borders and powerful internationally."
Last December, the United States armed forces conducted what it termed a "large-scale strike" against Islamic State objectives in the country, subsequent to an assault killed two US troops and a local interpreter in the Palmyra area.
The U.N. estimates Islamic State still boasts roughly 5-7 thousand fighters in Syria and Iraq.
