RAF Typhoon jets have conducted a mission with French aircraft in a combined operation on an underground arms cache in Syria operated by the IS group, as stated by the British defence ministry.
The site, pinpointed through surveillance, was thought to be containing munitions and bombs, the statement said, and was located in mountains just to the north of Palmyra in Syria's central region.
"Our fighter planes utilized precision-guided Paveway IV munitions to strike a number of entry passages providing entry to the site... preliminary assessments are that the objective was successfully hit," the ministry announced.
There was no sign of any harm to civilians in the operation conducted Saturday night and all the aircraft made a safe return, the ministry further stated.
The British jets were supported by a Voyager aerial refuelling aircraft.
IS - also known as Daesh - imposed jihadist rule over parts of Syria and Iraq until 2019.
"This action underscores the UK's leading role, and commitment to stand shoulder to shoulder with our partners, to eliminate any resurgence of the terrorist group and their violent and radical beliefs in the region," UK Defence Secretary the Defence Secretary stated.
British military aircraft have conducted overwatch operations over Syrian airspace to "deter any efforts to regroup" of the group following its defeat at the climactic battle in Baghuz in 2019, the MoD reported.
"I must thank the personnel of our armed forces involved in this strike for their skill and their courage," Healey said. "They were among a great many UK service members deployed over the holidays. This operation, to take out militants who threaten our safety, highlights how our armed forces are ready to step up, throughout the year, ensuring Britain's security within its borders and powerful internationally."
In December, the US military conducted what it termed a "major assault" on Daesh sites in Syria, after an ambush resulted in the deaths of two US servicemembers and a civilian linguist in the Palmyra area.
The United Nations says Daesh still boasts an estimated 5,000 to 7,000 fighters in both countries.
