RAF Typhoon jets have conducted a mission with France's air force in a coordinated attack against an subterranean weapons facility in Syria operated by the IS group, as stated by the British defence ministry.
The location, identified by surveillance, was assessed as housing weapons and explosive materials, the release indicated, and was situated in mountainous terrain just north of Palmyra in the heart of Syria.
"Our aircraft utilized laser-guided Paveway IV weapons to strike a series of entry passages down to the site... early reports suggest the objective was successfully hit," the MoD said.
There was no indication of any harm to civilians in the attack late on Saturday and every plane involved returned to base without incident, the MoD added.
The Typhoon FGR4s were supported by a Voyager aerial refuelling aircraft.
Daesh - also known as ISIS - established extremist governance over significant areas in Iraq and Syria before its territorial defeat in 2019.
"This operation shows British leadership, and commitment to operate in unison with our allies, to eliminate any resurgence of the terrorist group and their violent and radical beliefs in the Middle East," the British Defence Secretary the minister remarked.
British military aircraft have carried out patrols over Syria to "prevent any efforts to regroup" of Islamic State after its routing at the battle of Baghuz in 2019, the ministry said.
"I extend gratitude to all the members of the UK armed forces who took part in this strike for their expertise and their valour," he commented. "Including them were numerous British troops deployed over the holidays. This mission, to eliminate terrorist threats who threaten our way of life, highlights how our armed forces are always on standby, continuously, keeping Britain secure at home and powerful internationally."
In December, the American forces carried out what it described as a "major assault" on IS targets in the country, following an attack claimed the lives of two US servicemembers and a civilian interpreter in the Palmyra area.
The U.N. estimates IS still boasts between 5,000 and 7,000 combatants in Iraq and Syria.