British Air Force Typhoon fighter aircraft have operated alongside France's air force in a combined operation on an subterranean weapons facility in Syria employed by the Daesh militant organization, according to the UK's MoD.
The location, identified by surveillance, was thought to be storing arms and explosives, the statement said, and was situated in hills just north of the historic site of Palmyra in central Syria.
"Our fighter planes employed laser-guided Paveway IV weapons to strike a series of access tunnels leading to the site... early reports are that the objective was successfully hit," the ministry announced.
There was no indication of any civilian casualties in the strike on Saturday evening and all the aircraft made a safe return, the defence officials confirmed.
The Typhoon FGR4s were backed up by a Voyager aerial refuelling aircraft.
The Islamic State group - referred to as ISIS - imposed extremist governance over large swathes of Iraq and Syria until 2019.
"This strike underscores British leadership, and determination to stand shoulder to shoulder with our partners, to eliminate any resurgence of the terrorist group and their harmful and extremist ideologies in the Middle East," UK Defence Secretary the Defence Secretary stated.
RAF aircraft have conducted patrols over Syria to "forestall any efforts to regroup" of Islamic State subsequent to its defeat at the battle of Baghuz in 2019, the authorities noted.
"I must thank every member of the UK armed forces participating in this strike for their expertise and their valour," Healey said. "They were among thousands of British personnel stationed over the festive period. This operation, to remove militants who threaten our safety, highlights how UK forces are prepared to act, continuously, protecting the UK at home and strong abroad."
Last December, the American forces conducted what it described as a "major assault" against IS targets in the country, following an attack resulted in the deaths of two US troops and a local interpreter in Palmyra.
The United Nations says IS still has roughly 5-7 thousand fighters in Syria and Iraq.
