Royal Air Force Typhoon FGR4s have operated alongside French warplanes in a coordinated attack targeting an hidden munitions depot in Syrian territory employed by the Islamic State group (IS), according to the UK's MoD.
The facility, pinpointed through intelligence, was thought to be storing arms and explosives, the statement said, and was situated in mountainous terrain just north of the ancient city of Palmyra in Syria's central region.
"Our aircraft employed Paveway IV guided bombs to strike a several access tunnels leading to the depot... preliminary assessments are that the objective was successfully hit," the MoD said.
There was no sign of any harm to civilians in the attack late on Saturday and every plane involved returned safely, the defence officials confirmed.
The Typhoon fighters were backed up by a Voyager refuelling tanker.
The Islamic State group - referred to as ISIS - enforced militant control over large swathes of both Syria and Iraq until 2019.
"This operation underscores British leadership, and resolve to operate in unison with allied nations, to eliminate any resurgence of the terrorist group and their violent and radical beliefs in the Middle East," Britain's Defence Chief John Healey remarked.
British military aircraft have conducted surveillance missions over Syria to "prevent any efforts to regroup" of Islamic State following its routing at the climactic battle in Baghuz in the year 2019, the authorities noted.
"I extend gratitude to every member of British forces involved in this mission for their expertise and their valour," the Defence Secretary commented. "They were among a great many UK service members on duty over Christmas and New Year. This mission, to remove dangerous terrorists who endanger our security, highlights how UK forces are prepared to act, all year round, keeping Britain secure domestically and influential overseas."
During December, the American forces executed what it described as a "massive strike" targeting Islamic State objectives in the country, following an assault claimed the lives of two US troops and a civilian linguist in Palmyra.
The U.N. estimates IS still has roughly 5-7 thousand fighters in Syria and Iraq.