RAF Typhoon FGR4s have joined forces with French aircraft in a joint strike on an underground arms cache in Syria used by the Islamic State group (IS), per a report from the British defence ministry.
The facility, identified by surveillance, was thought to be housing weapons and explosive materials, the statement said, and was located in mountains just north of Palmyra in the heart of Syria.
"Our fighter planes utilized Paveway IV guided bombs to target a several approach shafts providing entry to the depot... initial indications are that the objective was successfully hit," the MoD said.
There was no indication of any civilian impact in the attack late on Saturday and each participating jet returned to base without incident, the MoD added.
The British jets were backed up by a Voyager refuelling tanker.
Daesh - alternatively referred to as ISIS - imposed extremist governance over large swathes of Syria and Iraq before its territorial defeat in 2019.
"This operation demonstrates the UK's leading role, and determination to work closely with our allies, to eliminate any resurgence of Daesh and their violent and radical beliefs in the region," UK Defence Secretary the Defence Secretary said.
British military aircraft have carried out surveillance missions over Syrian airspace to "prevent any attempted comeback" of Islamic State subsequent to its defeat at the climactic battle in Baghuz in 2019, the ministry said.
"I extend gratitude to every member of British forces who took part in this operation for their expertise and their bravery," Healey said. "They were part of a great many UK service members stationed over the festive period. This action, to eliminate terrorist threats who pose a risk to our security, demonstrates how British military are always on standby, throughout the year, ensuring Britain's security domestically and powerful internationally."
In December, the American forces executed what it called a "major assault" targeting Daesh sites in the country, subsequent to an attack killed two US servicemembers and a local interpreter in the Palmyra area.
The U.N. reports IS still has an estimated 5,000 to 7,000 fighters in Iraq and Syria.
