British Air Force Typhoon FGR4s have joined forces with French aircraft in a combined operation on an subterranean weapons facility in Syrian territory used by the Islamic State group (IS), according to the UK's MoD.
The location, located using intelligence, was assessed as housing weapons and explosive materials, the announcement noted, and was located in mountains just above the historic site of Palmyra in central Syria.
"Our fighter planes employed laser-guided Paveway IV weapons to target a several approach shafts down to the depot... preliminary assessments are that the target was engaged successfully," the ministry announced.
There was no sign of any civilian impact in the operation conducted Saturday night and every plane involved returned to base without incident, the MoD added.
The Typhoon fighters were assisted by a Voyager refuelling tanker.
The Islamic State group - referred to as ISIS - enforced extremist governance over parts of Syria and Iraq prior to its 2019 collapse.
"This action shows our UK leadership, and resolve to stand shoulder to shoulder with allied nations, to stamp out any re-emergence of the terrorist group and their violent and radical beliefs in the area," UK Defence Secretary the minister said.
British military aircraft have carried out surveillance missions over Syrian airspace to "prevent any attempted resurgence" of the group following its military defeat at the climactic battle in Baghuz in 2019, the MoD reported.
"I want to thank every member of our armed forces who took part in this operation for their expertise and their courage," Healey said. "They were part of numerous UK service members deployed over the festive period. This operation, to take out terrorist threats who threaten our security, highlights how our armed forces are prepared to act, continuously, ensuring Britain's security at home and influential overseas."
During December, the American forces executed what it termed a "massive strike" against Daesh sites in the country, subsequent to an ambush claimed the lives of two American soldiers and a civilian interpreter in the Palmyra area.
The United Nations reports IS still maintains between 5,000 and 7,000 fighters in both countries.
