Royal Air Force Typhoon fighter aircraft have conducted a mission with 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 Ministry of Defence.
The site, identified by intelligence, was believed to be containing munitions and bombs, the statement said, and was situated in hills just to the north of Palmyra in Syria's central region.
"Our aircraft utilized precision-guided Paveway IV munitions to strike a several entry passages providing entry to the site... initial indications indicate the strike was effective," the ministry announced.
There was no evidence of any harm to civilians in the operation conducted Saturday night and every plane involved returned to base without incident, the ministry further stated.
The Typhoon FGR4s were supported by a Voyager refuelling tanker.
IS - alternatively referred to as Daesh - established militant control over parts of Iraq and Syria until 2019.
"This strike demonstrates British leadership, and determination to work closely with allied nations, to stamp out any re-emergence of IS and their violent and radical beliefs in the area," the British Defence Secretary the minister stated.
UK warplanes have conducted patrols over Syria to "forestall any attempted resurgence" of Islamic State after its defeat at the battle of Baghuz in 2019, the ministry said.
"I extend gratitude to the personnel of British forces involved in this mission for their expertise and their courage," he said. "They were part of numerous UK service members deployed over Christmas and New Year. This action, to take out terrorist threats who endanger our security, shows how UK forces are ready to step up, throughout the year, protecting the UK at home and powerful internationally."
In December, the United States armed forces carried out what it termed a "massive strike" targeting Islamic State objectives in the country, following an assault killed two US troops and a civilian linguist in Palmyra.
The U.N. reports IS still maintains an estimated 5,000 to 7,000 combatants in Iraq and Syria.
