Royal Air Force Typhoon fighter aircraft have operated alongside French warplanes in a combined operation targeting an subterranean weapons facility in Syrian territory used by the Daesh militant organization, as stated by the UK's MoD.
The location, identified by reconnaissance, was believed to be housing weapons and explosive materials, the statement said, and was located in mountains just above the historic site of Palmyra in Syria's central region.
"The RAF jets utilized precision-guided Paveway IV munitions to strike a number of access tunnels down to the site... early reports indicate the strike was effective," the ministry announced.
There was no sign of any civilian casualties in the attack late on Saturday and all the aircraft returned safely, the defence officials confirmed.
The Typhoon fighters were backed up by a Voyager aerial refuelling aircraft.
IS - also known as Daesh - imposed jihadist rule over significant areas in Syria and Iraq prior to its 2019 collapse.
"This action demonstrates British leadership, and resolve to operate in unison with our allies, to eradicate any re-emergence of IS and their harmful and extremist ideologies in the region," the British Defence Secretary the minister remarked.
RAF aircraft have carried out overwatch operations over Syrian airspace to "forestall any attempted resurgence" of IS following its routing at the Baghuz confrontation in 2019, the ministry said.
"I must thank all the members of British forces participating in this strike for their expertise and their valour," Healey commented. "Including them were thousands of UK service members deployed over the holidays. This operation, to eliminate militants who endanger our security, highlights how UK forces are prepared to act, all year round, ensuring Britain's security at home and powerful internationally."
Last December, the United States armed forces executed what it described as a "massive strike" on Daesh sites in Syria, after an ambush claimed the lives of two US servicemembers and a civilian interpreter in Palmyra.
The UN says IS still boasts roughly 5-7 thousand militants in Syria and Iraq.