RAF Typhoon jets have joined forces with French aircraft in a joint strike targeting an subterranean weapons facility in Syrian territory used by the IS group, as stated by the British defence ministry.
The location, identified by intelligence, was assessed as storing arms and explosives, the announcement noted, and was located in mountainous terrain just above Palmyra in Syria's central region.
"Our aircraft employed precision-guided Paveway IV munitions to hit a series of approach shafts providing entry to the depot... initial indications suggest the objective was successfully hit," the ministry announced.
There was no sign of any civilian casualties in the strike on Saturday evening and all the aircraft returned to base without incident, the defence officials confirmed.
The Typhoon fighters were supported by a Voyager refuelling tanker.
The Islamic State group - also known as the so-called Islamic State - imposed extremist governance over significant areas in both Syria and Iraq before its territorial defeat in 2019.
"This action shows British leadership, and determination to operate in unison with our partners, to stamp out any revival of the terrorist group and their violent and radical beliefs in the area," UK Defence Secretary John Healey stated.
British military aircraft have carried out overwatch operations over Syrian airspace to "deter any attempted resurgence" of IS subsequent to its routing at the battle of Baghuz in 2019, the MoD reported.
"I extend gratitude to every member of our armed forces involved in this operation for their expertise and their bravery," he added. "They were part of a great many British troops on duty over the festive period. This action, to take out militants who pose a risk to our security, shows how our armed forces are always on standby, all year round, keeping Britain secure within its borders and strong abroad."
Last December, the United States armed forces carried out what it termed a "major assault" targeting Islamic State objectives in the country, after an attack resulted in the deaths of two American soldiers and a civilian linguist in the Palmyra area.
The UN estimates Islamic State still maintains an estimated 5,000 to 7,000 militants in Syria and Iraq.