RAF Typhoon FGR4s have joined forces with French warplanes in a coordinated attack against an subterranean weapons facility in Syria used by the Daesh militant organization, as stated by the British defence ministry.
The location, located using intelligence, was thought to be containing munitions and bombs, the statement said, and was positioned in mountainous terrain just north of Palmyra in the heart of Syria.
"The RAF jets employed laser-guided Paveway IV weapons to strike a several approach shafts down to the site... initial indications are that the strike was effective," the MoD said.
There was no indication of any harm to civilians in the attack late on Saturday and every plane involved made a safe return, the defence officials confirmed.
The Typhoon fighters were assisted by a Voyager aerial refuelling aircraft.
The Islamic State group - alternatively referred to as ISIS - enforced jihadist rule over significant areas in Syria and Iraq until 2019.
"This strike underscores the UK's leading role, and commitment to work closely with allied nations, to eliminate any revival of Daesh and their violent and radical beliefs in the region," Britain's Defence Chief the Defence Secretary said.
RAF aircraft have performed surveillance missions over Syria to "forestall any attempted resurgence" of Islamic State following its defeat at the battle of Baghuz in 2019, the MoD reported.
"I want to thank all the members of our armed forces involved in this operation for their skill and their courage," the Defence Secretary added. "Including them were a great many British personnel stationed over the holidays. This mission, to remove dangerous terrorists who pose a risk to our security, highlights how British military are ready to step up, all year round, keeping Britain secure domestically and influential overseas."
In December, the US military conducted what it described as a "major assault" targeting Daesh sites in Syria, following an attack resulted in the deaths of two US troops and a civilian linguist in Palmyra.
The UN estimates IS still has roughly 5-7 thousand fighters in Iraq and Syria.
