Royal Air Force Typhoon fighter aircraft have joined forces with French aircraft in a joint strike on an subterranean weapons facility in Syrian territory operated by the Daesh militant organization, per a report from the UK's MoD.
The site, identified by reconnaissance, was believed to be containing munitions and bombs, the release indicated, and was situated in hills just above the historic site of Palmyra in the heart of Syria.
"Our fighter planes utilized precision-guided Paveway IV munitions to strike a number of entry passages down to the depot... preliminary assessments indicate the target was engaged successfully," the MoD said.
There was no indication of any harm to civilians in the operation late on Saturday and every plane involved returned safely, the MoD added.
The Typhoon FGR4s were supported by a Voyager refuelling tanker.
IS - referred to as ISIS - enforced jihadist rule over large swathes of Syria and Iraq until 2019.
"This strike demonstrates the UK's leading role, and commitment to work closely with our partners, to eradicate any revival of Daesh and their harmful and extremist ideologies in the area," Britain's Defence Chief the Defence Secretary remarked.
UK warplanes have conducted overwatch operations over Syrian airspace to "deter any efforts to regroup" of the group following its routing at the battle of Baghuz in 2019, the authorities noted.
"I must thank every member of our armed forces who took part in this mission for their professionalism and their courage," the Defence Secretary said. "Including them were numerous British troops deployed over the holidays. This action, to eliminate terrorist threats who endanger our way of life, shows how our armed forces are prepared to act, continuously, keeping Britain secure at home and strong abroad."
During December, the United States armed forces executed what it termed a "large-scale strike" on Islamic State objectives in the country, following an ambush resulted in the deaths of two American soldiers and a civilian linguist in Palmyra.
The UN estimates Islamic State still maintains roughly 5-7 thousand militants in both countries.
