Royal Air Force Typhoon jets have operated alongside French aircraft in a joint strike on an subterranean weapons facility in Syria employed by the Daesh militant organization, per a report from the UK's MoD.
The facility, located using intelligence, was believed to be housing weapons and explosive materials, the statement said, and was located in mountainous terrain just north of the historic site of Palmyra in the heart of Syria.
"Our fighter planes used Paveway IV guided bombs to strike a several entry passages providing entry to the depot... initial indications suggest the objective was successfully hit," officials stated.
There was no evidence of any civilian impact in the strike conducted Saturday night and each participating jet returned to base without incident, the defence officials confirmed.
The Typhoon FGR4s were supported by a Voyager refuelling tanker.
IS - referred to as ISIS - imposed militant control over large swathes of Iraq and Syria prior to its 2019 collapse.
"This operation underscores British leadership, and resolve to work closely with our allies, to eliminate any revival of IS and their violent and radical beliefs in the Middle East," Britain's Defence Chief John Healey said.
UK warplanes have conducted surveillance missions over Syrian airspace to "forestall any attempted comeback" of the group after its military defeat at the Baghuz confrontation in the year 2019, the ministry said.
"I extend gratitude to the personnel of our armed forces who took part in this operation for their professionalism and their valour," he added. "Including them were a great many British troops on duty over the holidays. This mission, to take out terrorist threats who endanger our security, shows how UK forces are ready to step up, throughout the year, ensuring Britain's security at home and influential overseas."
Last December, the United States armed forces conducted what it described as a "large-scale strike" targeting Islamic State objectives in Syria, subsequent to an assault killed two US servicemembers and a local interpreter in Palmyra.
The U.N. reports Islamic State still maintains between 5,000 and 7,000 combatants in Iraq and Syria.
