British Air Force Typhoon FGR4s have conducted a mission with France's air force in a joint strike on an underground arms cache in Syria employed by the Islamic State group (IS), per a report from the British defence ministry.
The site, identified by surveillance, was thought to be containing munitions and bombs, the announcement noted, and was positioned in mountains just north of the ancient city of Palmyra in Syria's central region.
"Our aircraft utilized laser-guided Paveway IV weapons to strike a series of access tunnels down to the facility... initial indications are that the target was engaged successfully," the ministry announced.
There was no evidence of any civilian casualties in the strike conducted Saturday night and each participating jet made a safe return, the ministry further stated.
The Typhoon fighters were backed up by a Voyager refuelling tanker.
Daesh - also known as ISIS - enforced extremist governance over parts of both Syria and Iraq until 2019.
"This action demonstrates British leadership, and determination to work closely with our partners, to eliminate any revival of IS and their harmful and extremist ideologies in the region," UK Defence Secretary John Healey remarked.
UK warplanes have performed surveillance missions over Syria to "prevent any attempted resurgence" of the group subsequent to its military defeat at the Baghuz confrontation in the year 2019, the ministry said.
"I must thank every member of our armed forces participating in this operation for their expertise and their valour," he commented. "They were part of thousands of UK service members deployed over the holidays. This mission, to take out dangerous terrorists who endanger our safety, shows how UK forces are prepared to act, all year round, ensuring Britain's security domestically and influential overseas."
Last December, the US military carried out what it called a "large-scale strike" targeting IS targets in Syria, subsequent to an attack resulted in the deaths of two US servicemembers and a civilian linguist in Palmyra.
The UN says Islamic State still boasts roughly 5-7 thousand combatants in both countries.