Royal Air Force Typhoon FGR4s have joined forces with France's air force in a joint strike on an underground arms cache in Syrian territory employed by the Islamic State group (IS), according to the UK's MoD.
The facility, located using intelligence, was thought to be storing arms and explosives, the announcement noted, and was located in mountainous terrain just to the north of Palmyra in central Syria.
"Our aircraft employed precision-guided Paveway IV munitions to strike a several entry passages down to the facility... preliminary assessments suggest the strike was effective," the MoD said.
There was no sign of any civilian casualties in the attack late on Saturday and all the aircraft made a safe return, the MoD added.
The Typhoon fighters were backed up by a Voyager tanker plane.
Daesh - referred to as Daesh - established extremist governance over large swathes of Iraq and Syria before its territorial defeat in 2019.
"This operation shows our UK leadership, and resolve to operate in unison with our partners, to eliminate any revival of Daesh and their dangerous and violent ideologies in the Middle East," the British Defence Secretary the Defence Secretary remarked.
RAF aircraft have carried out overwatch operations 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 the personnel of British forces involved in this mission for their expertise and their valour," the Defence Secretary commented. "Including them were thousands of UK service members on duty over Christmas and New Year. This operation, to take out terrorist threats who threaten our safety, highlights how British military are prepared to act, all year round, ensuring Britain's security domestically and powerful internationally."
Last December, the American forces conducted what it termed a "major assault" against Islamic State objectives in Syria, subsequent to an assault resulted in the deaths of two US troops and a civilian interpreter in the Palmyra area.
The UN says Daesh still has roughly 5-7 thousand fighters in Syria and Iraq.
