RAF Typhoon fighter aircraft have conducted a mission with French aircraft in a combined operation against an subterranean weapons facility in Syria operated by the Daesh militant organization, per a report from the UK Ministry of Defence.
The location, located using reconnaissance, was thought to be containing munitions and bombs, the statement said, and was situated in mountains just north of Palmyra in Syria's central region.
"Our fighter planes employed Paveway IV guided bombs to hit a series of access tunnels down to the facility... initial indications suggest the objective was successfully hit," the MoD said.
There was no sign of any civilian casualties in the attack conducted Saturday night and each participating jet returned safely, the MoD added.
The Typhoon fighters were supported by a Voyager aerial refuelling aircraft.
The Islamic State group - referred to as Daesh - enforced militant control over significant areas in both Syria and Iraq before its territorial defeat in 2019.
"This strike shows the UK's leading role, and resolve to operate in unison with allied nations, to stamp out any re-emergence of the terrorist group and their dangerous and violent ideologies in the area," Britain's Defence Chief the Defence Secretary said.
British military aircraft have performed patrols over Syria to "deter any attempted resurgence" of Islamic State subsequent to its defeat at the battle of Baghuz in 2019, the ministry said.
"I extend gratitude to all the members of British forces who took part in this strike for their expertise and their bravery," Healey commented. "They were among a great many British personnel deployed over the festive period. This operation, to remove militants who pose a risk to our security, demonstrates how our armed forces are ready to step up, throughout the year, ensuring Britain's security domestically and strong abroad."
In December, the American forces executed what it called a "major assault" targeting IS targets in the country, following an ambush killed two American soldiers and a civilian linguist in Palmyra.
The UN says IS still maintains roughly 5-7 thousand militants in Syria and Iraq.