British Air Force Typhoon FGR4s have conducted a mission with France's air force in a coordinated attack against an subterranean weapons facility in Syrian territory operated by the IS group, per a report from the British defence ministry.
The location, identified by reconnaissance, was believed to be storing arms and explosives, the release indicated, and was located in mountainous terrain just north of the ancient city of Palmyra in Syria's central region.
"The RAF jets employed precision-guided Paveway IV munitions to strike a several entry passages down to the facility... early reports indicate the objective was successfully hit," officials stated.
There was no evidence of any civilian casualties in the attack late on Saturday and each participating jet returned to base without incident, the ministry further stated.
The Typhoon fighters were backed up by a Voyager tanker plane.
IS - also known as ISIS - established jihadist rule over significant areas in Iraq and Syria before its territorial defeat in 2019.
"This operation underscores the UK's leading role, and resolve to operate in unison with our partners, to eradicate any resurgence of the terrorist group and their harmful and extremist ideologies in the Middle East," UK Defence Secretary the minister said.
RAF aircraft have carried out patrols over Syrian airspace to "forestall any efforts to regroup" of Islamic State after its routing at the Baghuz confrontation in 2019, the MoD reported.
"I must thank the personnel of our armed forces participating in this mission for their professionalism and their courage," he said. "Including them were numerous British troops stationed over the festive period. This operation, to take out militants who endanger our safety, demonstrates how our armed forces are always on standby, throughout the year, protecting the UK at home and strong abroad."
Last December, the United States armed forces conducted what it termed a "large-scale strike" against Islamic State objectives in the country, subsequent to an assault killed two US troops and a local interpreter in the Palmyra area.
The U.N. says Islamic State still maintains an estimated 5,000 to 7,000 militants in both countries.
