RAF Typhoon fighter aircraft have joined forces with French warplanes in a combined operation on an subterranean weapons facility in Syrian territory used by the IS group, according to the UK's MoD.
The location, identified by intelligence, was assessed as storing arms and explosives, the release indicated, and was situated in mountainous terrain just to the north of the historic site of Palmyra in central Syria.
"Our fighter planes utilized precision-guided Paveway IV munitions to hit a several entry passages providing entry to the site... preliminary assessments are that the objective was successfully hit," the MoD said.
There was no sign of any civilian impact in the strike on Saturday evening and all the aircraft made a safe return, the defence officials confirmed.
The Typhoon FGR4s were backed up by a Voyager refuelling tanker.
Daesh - referred to as the so-called Islamic State - established extremist governance over parts of Iraq and Syria prior to its 2019 collapse.
"This operation underscores our UK leadership, and resolve to work closely with allied nations, to eliminate any re-emergence of IS and their harmful and extremist ideologies in the region," Britain's Defence Chief the Defence Secretary said.
UK warplanes have performed patrols over Syrian airspace to "prevent any attempted resurgence" of the group after its military defeat at the battle of Baghuz in 2019, the ministry said.
"I extend gratitude to every member of British forces participating in this operation for their professionalism and their bravery," Healey commented. "They were among numerous UK service members stationed over the holidays. This operation, to take out militants who pose a risk to our security, highlights how UK forces are ready to step up, all year round, ensuring Britain's security domestically and influential overseas."
During December, the American forces conducted what it described as a "major assault" against Islamic State objectives in Syria, following an attack resulted in the deaths of two US servicemembers and a local interpreter in the Palmyra area.
The UN says IS still boasts roughly 5-7 thousand militants in Syria and Iraq.
