RAF Typhoon FGR4s have conducted a mission with French warplanes in a coordinated attack on an underground arms cache in Syria operated by the IS group, according to the British defence ministry.
The facility, identified by intelligence, was assessed as storing arms and explosives, the release indicated, and was located in mountains just north of the ancient city of Palmyra in Syria's central region.
"The RAF jets utilized precision-guided Paveway IV munitions to hit a several access tunnels leading to the depot... initial indications are that the strike was effective," the MoD said.
There was no evidence of any harm to civilians in the strike late on Saturday and all the aircraft made a safe return, the defence officials confirmed.
The Typhoon fighters were backed up by a Voyager aerial refuelling aircraft.
Daesh - also known as the so-called Islamic State - enforced extremist governance over large swathes of Syria and Iraq prior to its 2019 collapse.
"This operation underscores our UK leadership, and determination to work closely with allied nations, to eradicate any resurgence of the terrorist group and their violent and radical beliefs in the area," UK Defence Secretary John Healey stated.
British military aircraft have performed surveillance missions over Syria to "prevent any attempted resurgence" of Islamic State after its defeat at the battle of Baghuz in the year 2019, the MoD reported.
"I extend gratitude to every member of the UK armed forces involved in this mission for their skill and their courage," Healey said. "They were among thousands of British troops on duty over the festive period. This operation, to take out militants who pose a risk to our way of life, highlights how UK forces are ready to step up, throughout the year, ensuring Britain's security at home and influential overseas."
During December, the American forces conducted what it described as a "large-scale strike" targeting Islamic State objectives in the country, subsequent to an assault claimed the lives of two US servicemembers and a civilian interpreter in the Palmyra area.
The UN says IS still boasts an estimated 5,000 to 7,000 militants in Iraq and Syria.
