Royal Air Force Typhoon jets have joined forces with France's air force in a joint strike targeting an underground arms cache in Syria employed by the IS group, per a report from the British defence ministry.
The location, identified by surveillance, was believed to be housing weapons and explosive materials, the announcement noted, and was positioned in mountainous terrain just north of Palmyra in the heart of Syria.
"Our aircraft used precision-guided Paveway IV munitions to target a several entry passages providing entry to the depot... early reports are that the strike was effective," the ministry announced.
There was no evidence of any civilian casualties in the attack on Saturday evening and every plane involved returned to base without incident, the MoD added.
The Typhoon FGR4s were supported by a Voyager aerial refuelling aircraft.
The Islamic State group - alternatively referred to as ISIS - enforced extremist governance over parts of Iraq and Syria before its territorial defeat in 2019.
"This strike demonstrates British leadership, and determination to stand shoulder to shoulder with our partners, to eliminate any resurgence of IS and their violent and radical beliefs in the region," the British Defence Secretary the Defence Secretary stated.
RAF aircraft have conducted patrols over Syrian airspace to "prevent any attempted comeback" of Islamic State following its defeat at the climactic battle in Baghuz in the year 2019, the ministry said.
"I must thank all the members of the UK armed forces involved in this mission for their professionalism and their courage," Healey said. "Including them were a great many UK service members on duty over the festive period. This mission, to remove terrorist threats who pose a risk to our security, highlights how UK forces are always on standby, throughout the year, keeping Britain secure within its borders and influential overseas."
During December, the American forces conducted what it called a "massive strike" against Islamic State objectives in Syria, following an assault killed two American soldiers and a civilian interpreter in Palmyra.
The UN estimates Islamic State still maintains roughly 5-7 thousand combatants in Iraq and Syria.
