British Air Force Typhoon FGR4s have operated alongside French warplanes in a coordinated attack on an subterranean weapons facility in Syrian territory employed by the Islamic State group (IS), per a report from the UK's MoD.
The location, identified by surveillance, was believed to be storing arms and explosives, the statement said, and was positioned in hills just to the north of the historic site of Palmyra in Syria's central region.
"Our aircraft utilized laser-guided Paveway IV weapons to strike a number of approach shafts providing entry to the site... preliminary assessments are that the strike was effective," the MoD said.
There was no sign of any civilian impact in the strike conducted Saturday night and every plane involved made a safe return, the MoD added.
The British jets were backed up by a Voyager aerial refuelling aircraft.
Daesh - alternatively referred to as Daesh - enforced militant control over parts of both Syria and Iraq prior to its 2019 collapse.
"This action demonstrates our UK leadership, and commitment to work closely with our partners, to eliminate 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 patrols over Syria to "prevent any efforts to regroup" of the group following its defeat at the Baghuz confrontation in 2019, the ministry said.
"I want to thank all the members of British forces participating in this strike for their skill and their bravery," he added. "Including them were thousands of British troops on duty over the festive period. This mission, to take out dangerous terrorists who pose a risk to our way of life, shows how UK forces are ready to step up, all year round, protecting the UK within its borders and strong abroad."
During December, the United States armed forces carried out what it called a "massive strike" on Islamic State objectives in Syria, following an attack resulted in the deaths of two US servicemembers and a local interpreter in Palmyra.
The UN estimates Islamic State still has between 5,000 and 7,000 fighters in Iraq and Syria.
