Royal Air Force Typhoon FGR4s have operated alongside French warplanes in a coordinated attack targeting an subterranean weapons facility in Syrian territory operated by the IS group, according to the British defence ministry.
The facility, located using surveillance, was thought to be housing weapons and explosive materials, the statement said, and was located in mountains just to the north of the ancient city of Palmyra in the heart of Syria.
"The RAF jets used Paveway IV guided bombs to target a series of entry passages leading to the depot... preliminary assessments are that the strike was effective," the ministry announced.
There was no sign of any civilian casualties in the operation late on Saturday and all the aircraft returned to base without incident, the defence officials confirmed.
The Typhoon FGR4s were assisted by a Voyager aerial refuelling aircraft.
The Islamic State group - referred to as ISIS - imposed extremist governance over parts of both Syria and Iraq until 2019.
"This action demonstrates our UK leadership, and commitment to stand shoulder to shoulder with allied nations, to eliminate any resurgence of IS and their dangerous and violent ideologies in the region," the British Defence Secretary the Defence Secretary stated.
RAF aircraft have conducted surveillance missions over Syrian airspace to "prevent any attempted comeback" of Islamic State after its routing at the climactic battle in Baghuz in 2019, the authorities noted.
"I want to thank every member of the UK armed forces participating in this mission for their professionalism and their valour," the Defence Secretary added. "They were part of thousands of British troops stationed over Christmas and New Year. This action, to eliminate dangerous terrorists who endanger our safety, highlights how British military are ready to step up, continuously, keeping Britain secure domestically and powerful internationally."
In December, the American forces conducted what it called a "massive strike" targeting IS targets in the country, subsequent to an attack resulted in the deaths of two US troops and a civilian interpreter in the Palmyra area.
The U.N. reports IS still has an estimated 5,000 to 7,000 fighters in Syria and Iraq.
