British Air Force Typhoon FGR4s have operated alongside French aircraft in a joint strike on an subterranean weapons facility in Syrian territory operated by the IS group, according to the British defence ministry.
The site, located using surveillance, was assessed as storing arms and explosives, the announcement noted, and was positioned in hills just to the north of Palmyra in central Syria.
"Our fighter planes used Paveway IV guided bombs to hit a several access tunnels leading to the site... initial indications are that the strike was effective," the MoD said.
There was no evidence of any civilian impact in the attack conducted Saturday night and each participating jet returned safely, the ministry further stated.
The Typhoon FGR4s were supported by a Voyager aerial refuelling aircraft.
IS - also known as Daesh - imposed militant control over significant areas in Iraq and Syria until 2019.
"This action demonstrates our UK leadership, and resolve to operate in unison with allied nations, to eradicate any resurgence of Daesh and their dangerous and violent ideologies in the region," UK Defence Secretary the minister said.
RAF aircraft have performed overwatch operations over Syrian airspace to "forestall any attempted resurgence" of the group following its military defeat at the climactic battle in Baghuz in the year 2019, the MoD reported.
"I must thank every member of our armed forces who took part in this strike for their professionalism and their bravery," he said. "Including them were numerous UK service members stationed over Christmas and New Year. This operation, to take out militants who pose a risk to our way of life, highlights how our armed forces are ready to step up, all year round, keeping Britain secure at home and powerful internationally."
During December, the United States armed forces carried out what it called a "major assault" targeting Islamic State objectives in Syria, subsequent to an attack resulted in the deaths of two US servicemembers and a civilian interpreter in the Palmyra area.
The U.N. says Islamic State still maintains an estimated 5,000 to 7,000 militants in Iraq and Syria.
