Royal Air Force Typhoon jets have conducted a mission with French aircraft in a coordinated attack on an hidden munitions depot in Syria employed by the IS group, according to the UK Ministry of Defence.
The facility, pinpointed through intelligence, was believed to be storing arms and explosives, the statement said, and was located in mountains just above the historic site of Palmyra in Syria's central region.
"The RAF jets employed laser-guided Paveway IV weapons to strike a series of access tunnels down to the depot... initial indications indicate the strike was effective," the MoD said.
There was no sign of any civilian impact in the attack conducted Saturday night and each participating jet made a safe return, the ministry further stated.
The British jets were supported by a Voyager refuelling tanker.
Daesh - alternatively referred to as ISIS - imposed extremist governance over significant areas in Iraq and Syria prior to its 2019 collapse.
"This strike underscores British leadership, and commitment to stand shoulder to shoulder with our allies, to eradicate any revival of IS and their violent and radical beliefs in the area," UK Defence Secretary the Defence Secretary said.
RAF aircraft have carried out patrols over Syria to "forestall any efforts to regroup" of IS following its military defeat at the Baghuz confrontation in 2019, the ministry said.
"I extend gratitude to all the members of the UK armed forces who took part in this mission for their professionalism and their bravery," Healey said. "They were part of thousands of British personnel stationed over the holidays. This operation, to take out militants who endanger our way of life, shows how our armed forces are always on standby, continuously, ensuring Britain's security within its borders and strong abroad."
During December, the US military conducted what it called a "major assault" against IS targets in the country, subsequent to an assault claimed the lives of two US troops and a civilian linguist in Palmyra.
The United Nations reports IS still boasts an estimated 5,000 to 7,000 fighters in both countries.
