RAF Typhoon FGR4s have conducted a mission with French warplanes in a joint strike against an subterranean weapons facility in Syria employed by the Daesh militant organization, according to the British defence ministry.
The site, located using reconnaissance, was thought to be containing munitions and bombs, the statement said, and was situated in mountains just to the north of Palmyra in central Syria.
"Our aircraft utilized laser-guided Paveway IV weapons to target a several access tunnels leading to the facility... initial indications are that the strike was effective," the ministry announced.
There was no evidence of any civilian impact in the operation on Saturday evening and every plane involved returned safely, the ministry further stated.
The British jets were backed up by a Voyager refuelling tanker.
Daesh - referred to as Daesh - imposed jihadist rule over large swathes of Syria and Iraq prior to its 2019 collapse.
"This strike underscores our UK leadership, and determination to operate in unison with our partners, to eradicate any resurgence of Daesh and their harmful and extremist ideologies in the Middle East," Britain's Defence Chief John Healey remarked.
RAF aircraft have performed surveillance missions over Syria to "prevent any attempted comeback" of Islamic State after its military defeat at the climactic battle in Baghuz in the year 2019, the ministry said.
"I must thank the personnel of British forces participating in this operation for their skill and their valour," he commented. "Including them were a great many UK service members on duty over the holidays. This operation, to take out dangerous terrorists who endanger our safety, demonstrates how our armed forces are always on standby, throughout the year, keeping Britain secure domestically and influential overseas."
In December, the American forces carried out what it called a "large-scale strike" against Daesh sites in the country, following an attack claimed the lives of two US troops and a civilian linguist in Palmyra.
The UN says IS still boasts roughly 5-7 thousand combatants in both countries.