RAF Typhoon fighter aircraft have conducted a mission with French warplanes in a coordinated attack on an underground arms cache in Syria used by the IS group, per a report from the UK's MoD.
The facility, identified by reconnaissance, was assessed as storing arms and explosives, the announcement noted, and was positioned in mountains just to the north of the historic site of Palmyra in central Syria.
"Our fighter planes employed precision-guided Paveway IV munitions to strike a number of entry passages down to the site... early reports suggest the objective was successfully hit," the ministry announced.
There was no evidence of any civilian casualties in the operation late on Saturday and each participating jet returned to base without incident, the defence officials confirmed.
The Typhoon fighters were backed up by a Voyager tanker plane.
Daesh - also known as the so-called Islamic State - established militant control over parts of Syria and Iraq prior to its 2019 collapse.
"This operation shows British leadership, and resolve to work closely with our allies, to eliminate any revival of the terrorist group and their harmful and extremist ideologies in the Middle East," UK Defence Secretary the Defence Secretary said.
UK warplanes have conducted surveillance missions over Syria to "forestall any attempted comeback" of Islamic State following its routing at the Baghuz confrontation in 2019, the MoD reported.
"I must thank all the members of British forces who took part in this operation for their professionalism and their valour," the Defence Secretary said. "They were among a great many UK service members deployed over Christmas and New Year. This mission, to remove dangerous terrorists who threaten our safety, highlights how UK forces are ready to step up, all year round, protecting the UK at home and influential overseas."
In December, the United States armed forces conducted what it termed a "major assault" against IS targets in Syria, subsequent to an assault resulted in the deaths of two US troops and a civilian linguist in Palmyra.
The U.N. estimates IS still maintains roughly 5-7 thousand militants in both countries.
