British Air Force Typhoon jets have joined forces with France's air force in a combined operation against an subterranean weapons facility in Syria operated by the IS group, per a report from the UK Ministry of Defence.
The site, identified by surveillance, was believed to be storing arms and explosives, the announcement noted, and was positioned in hills just above Palmyra in Syria's central region.
"Our fighter planes used precision-guided Paveway IV munitions to hit a series of approach shafts leading to the depot... early reports are that the strike was effective," the MoD said.
There was no indication of any civilian impact in the strike on Saturday evening and all the aircraft returned safely, the MoD added.
The British jets were assisted by a Voyager tanker plane.
IS - also known as ISIS - imposed jihadist rule over large swathes of both Syria and Iraq until 2019.
"This strike demonstrates our UK leadership, and determination to work closely with allied nations, to stamp out any resurgence of the terrorist group and their violent and radical beliefs in the Middle East," UK Defence Secretary the Defence Secretary stated.
RAF aircraft have carried out patrols over Syria to "deter any attempted comeback" of IS after its defeat at the climactic battle in Baghuz in 2019, the MoD reported.
"I want to thank the personnel of the UK armed forces participating in this mission for their skill and their valour," Healey added. "They were among numerous British personnel on duty over the holidays. This action, to eliminate militants who endanger our way of life, highlights how our armed forces are ready to step up, all year round, ensuring Britain's security domestically and powerful internationally."
In December, the American forces conducted what it termed a "massive strike" on Islamic State objectives in the country, subsequent to an attack resulted in the deaths of two American soldiers and a civilian interpreter in Palmyra.
The UN says Islamic State still has between 5,000 and 7,000 militants in both countries.
