Royal Air Force Typhoon jets have joined forces with France's air force in a combined operation targeting an underground arms cache in Syria operated by the Islamic State group (IS), as stated by the UK's MoD.
The location, located using intelligence, was assessed as containing munitions and bombs, the release indicated, and was located in hills just above the ancient city of Palmyra in the heart of Syria.
"Our fighter planes used laser-guided Paveway IV weapons to strike a several approach shafts down to the site... initial indications indicate the target was engaged successfully," the ministry announced.
There was no sign of any civilian casualties in the operation conducted Saturday night and each participating jet made a safe return, the MoD added.
The British jets were supported by a Voyager refuelling tanker.
The Islamic State group - alternatively referred to as Daesh - imposed extremist governance over large swathes of Iraq and Syria prior to its 2019 collapse.
"This action shows our UK leadership, and determination to work closely with our allies, to eliminate any resurgence of the terrorist group and their harmful and extremist ideologies in the Middle East," the British Defence Secretary John Healey remarked.
UK warplanes have conducted surveillance missions over Syrian airspace to "deter any attempted resurgence" of Islamic State following its defeat at the battle of Baghuz in the year 2019, the ministry said.
"I want to thank every member of our armed forces participating in this strike for their skill and their valour," he commented. "Including them were a great many British troops on duty over the festive period. This operation, to eliminate dangerous terrorists who endanger our safety, shows how our armed forces are always on standby, continuously, protecting the UK domestically and strong abroad."
During December, the American forces conducted what it described as a "massive strike" on Daesh sites in Syria, following an assault resulted in the deaths of two US servicemembers and a local interpreter in the Palmyra area.
The UN reports Daesh still maintains between 5,000 and 7,000 militants in Syria and Iraq.
