British Air Force Typhoon FGR4s have operated alongside France's air force in a combined operation targeting an subterranean weapons facility in Syria operated by the Daesh militant organization, according to the UK's MoD.
The site, identified by surveillance, was believed to be housing weapons and explosive materials, the announcement noted, and was situated in hills just above Palmyra in Syria's central region.
"Our fighter planes utilized laser-guided Paveway IV weapons to strike a number of entry passages down to the facility... early reports are that the strike was effective," the MoD said.
There was no sign of any civilian casualties in the operation late on Saturday and every plane involved made a safe return, the MoD added.
The Typhoon FGR4s were supported by a Voyager refuelling tanker.
Daesh - alternatively referred to as the so-called Islamic State - enforced extremist governance over large swathes of Iraq and Syria prior to its 2019 collapse.
"This action demonstrates the UK's leading role, and commitment to stand shoulder to shoulder with our allies, to stamp out any re-emergence of IS and their violent and radical beliefs in the region," the British Defence Secretary the Defence Secretary stated.
RAF aircraft have conducted surveillance missions over Syria to "deter any attempted comeback" of Islamic State after its military defeat at the climactic battle in Baghuz in 2019, the authorities noted.
"I must thank every member of British forces who took part in this operation for their skill and their valour," he added. "Including them were a great many British personnel stationed over the festive period. This action, to remove dangerous terrorists who endanger our safety, demonstrates how UK forces are always on standby, all year round, protecting the UK at home and strong abroad."
During December, the United States armed forces executed what it called a "massive strike" against Daesh sites in Syria, subsequent to an attack killed two American soldiers and a civilian interpreter in Palmyra.
The UN says IS still has between 5,000 and 7,000 militants in Iraq and Syria.
