Royal Air Force Typhoon jets have operated alongside French aircraft in a joint strike on an underground arms cache in Syria operated by the Daesh militant organization, as stated by the British defence ministry.
The site, located using reconnaissance, was believed to be storing arms and explosives, the announcement noted, and was located in mountainous terrain just to the north of Palmyra in Syria's central region.
"Our fighter planes used Paveway IV guided bombs to strike a series of approach shafts down to the facility... initial indications are that the target was engaged successfully," the MoD said.
There was no evidence of any civilian casualties in the strike on Saturday evening and each participating jet made a safe return, the defence officials confirmed.
The Typhoon fighters were assisted by a Voyager aerial refuelling aircraft.
Daesh - referred to as ISIS - imposed extremist governance over significant areas in both Syria and Iraq prior to its 2019 collapse.
"This action shows our UK leadership, and commitment to stand shoulder to shoulder with our partners, to eradicate any revival of the terrorist group and their violent and radical beliefs in the area," UK Defence Secretary the Defence Secretary said.
RAF aircraft have performed surveillance missions over Syrian airspace to "forestall any attempted resurgence" of the group after its military defeat at the Baghuz confrontation in 2019, the authorities noted.
"I want to thank the personnel of British forces participating in this operation for their expertise and their courage," he said. "They were among a great many British troops on duty over the holidays. This mission, to take out militants who endanger our safety, shows how our armed forces are always on standby, continuously, protecting the UK within its borders and influential overseas."
Last December, the United States armed forces conducted what it called a "major assault" against IS targets in Syria, after an assault resulted in the deaths of two US servicemembers and a local interpreter in the Palmyra area.
The U.N. estimates Islamic State still has between 5,000 and 7,000 militants in Iraq and Syria.
