RAF Typhoon jets have joined forces with France's air force in a combined operation targeting an subterranean weapons facility in Syria operated by the Daesh militant organization, according to the UK Ministry of Defence.
The site, pinpointed through reconnaissance, was thought to be storing arms and explosives, the release indicated, and was located in mountainous terrain just north of the ancient city of Palmyra in Syria's central region.
"The RAF jets employed precision-guided Paveway IV munitions to hit a several access tunnels leading to the depot... early reports are that the objective was successfully hit," the MoD said.
There was no indication of any harm to civilians in the strike late on Saturday and each participating jet made a safe return, the MoD added.
The British jets were supported by a Voyager aerial refuelling aircraft.
Daesh - referred to as ISIS - enforced extremist governance over large swathes of Syria and Iraq until 2019.
"This strike demonstrates British leadership, and determination to work closely with our allies, to eradicate any re-emergence of the terrorist group and their harmful and extremist ideologies in the area," UK Defence Secretary the minister remarked.
UK warplanes have performed patrols over Syrian airspace to "deter any efforts to regroup" of the group following its military defeat at the Baghuz confrontation in the year 2019, the MoD reported.
"I want to thank all the members of the UK armed forces involved in this strike for their skill and their courage," he added. "They were part of numerous British personnel stationed over Christmas and New Year. This operation, to eliminate terrorist threats who endanger our way of life, shows how British military are ready to step up, continuously, ensuring Britain's security at home and strong abroad."
During December, the American forces conducted what it described as a "major assault" on Daesh sites in the country, after an assault killed two US troops and a civilian linguist in Palmyra.
The U.N. estimates Daesh still maintains between 5,000 and 7,000 fighters in Syria and Iraq.
