RAF Typhoon FGR4s have conducted a mission with French warplanes in a coordinated attack targeting an subterranean weapons facility in Syria employed by the IS group, according to the British defence ministry.
The facility, identified by reconnaissance, was assessed as housing weapons and explosive materials, the release indicated, and was positioned in mountains just north of Palmyra in central Syria.
"The RAF jets utilized Paveway IV guided bombs to hit a series of access tunnels down to the facility... initial indications are that the target was engaged successfully," the MoD said.
There was no sign of any civilian impact in the attack conducted Saturday night and each participating jet returned safely, the ministry further stated.
The Typhoon FGR4s were backed up by a Voyager aerial refuelling aircraft.
Daesh - also known as ISIS - imposed extremist governance over parts of both Syria and Iraq before its territorial defeat in 2019.
"This strike shows our UK leadership, and commitment to stand shoulder to shoulder with allied nations, to eliminate any re-emergence of IS and their harmful and extremist ideologies in the Middle East," Britain's Defence Chief the Defence Secretary said.
RAF aircraft have carried out overwatch operations over Syrian airspace to "deter any attempted resurgence" of IS following its routing at the Baghuz confrontation in 2019, the ministry said.
"I must thank every member of our armed forces who took part in this operation for their professionalism and their bravery," he added. "They were part of numerous UK service members stationed over Christmas and New Year. This mission, to eliminate militants who endanger our security, highlights how British military are always on standby, throughout the year, keeping Britain secure at home and strong abroad."
Last December, the United States armed forces executed what it called a "massive strike" targeting IS targets in the country, after an ambush resulted in the deaths of two US servicemembers and a civilian interpreter in the Palmyra area.
The U.N. reports Daesh still boasts roughly 5-7 thousand militants in both countries.
