Royal Air Force Typhoon jets have conducted a mission with French aircraft in a joint strike against an underground arms cache in Syria used by the Islamic State group (IS), as stated by the British defence ministry.
The location, identified by intelligence, was believed to be storing arms and explosives, the statement said, and was located in hills just to the north of Palmyra in Syria's central region.
"Our aircraft utilized precision-guided Paveway IV munitions to strike a number of entry passages leading to the facility... initial indications are that the strike was effective," the MoD said.
There was no indication of any civilian casualties in the attack conducted Saturday night and each participating jet returned safely, the defence officials confirmed.
The Typhoon FGR4s were backed up by a Voyager aerial refuelling aircraft.
The Islamic State group - alternatively referred to as Daesh - imposed jihadist rule over parts of both Syria and Iraq before its territorial defeat in 2019.
"This strike underscores our UK leadership, and commitment to stand shoulder to shoulder with our partners, to eradicate any revival of IS and their harmful and extremist ideologies in the Middle East," the British Defence Secretary the Defence Secretary said.
RAF aircraft have conducted overwatch operations over Syria to "prevent any efforts to regroup" of IS after its military defeat at the Baghuz confrontation in 2019, the ministry said.
"I want to thank the personnel of the UK armed forces who took part in this strike for their expertise and their bravery," he said. "They were part of numerous UK service members on duty over the holidays. This operation, to take out terrorist threats who endanger our safety, highlights how our armed forces are ready to step up, all year round, keeping Britain secure domestically and strong abroad."
Last December, the American forces conducted what it called a "major assault" on Daesh sites in Syria, after an attack claimed the lives of two US servicemembers and a local interpreter in Palmyra.
The UN says IS still has an estimated 5,000 to 7,000 fighters in both countries.
