RAF Typhoon jets have conducted a mission with France's air force in a combined operation on an hidden munitions depot in Syrian territory operated by the Islamic State group (IS), according to the British defence ministry.
The location, located using surveillance, was thought to be storing arms and explosives, the announcement noted, and was located in mountains just above Palmyra in central Syria.
"Our fighter planes utilized laser-guided Paveway IV weapons to hit a several access tunnels down to the facility... early reports are that the objective was successfully hit," the MoD said.
There was no sign of any civilian impact in the attack late on Saturday and all the aircraft returned to base without incident, the MoD added.
The Typhoon FGR4s were assisted by a Voyager tanker plane.
IS - alternatively referred to as the so-called Islamic State - enforced extremist governance over significant areas in Iraq and Syria prior to its 2019 collapse.
"This strike shows the UK's leading role, and commitment to work closely with our partners, to eradicate any re-emergence of Daesh and their dangerous and violent ideologies in the area," UK Defence Secretary the Defence Secretary said.
British military aircraft have carried out overwatch operations over Syria to "forestall any efforts to regroup" of Islamic State following its military defeat at the climactic battle in Baghuz in 2019, the MoD reported.
"I must thank all the members of British forces involved in this mission for their professionalism and their courage," Healey added. "They were part of a great many British troops deployed over Christmas and New Year. This action, to eliminate dangerous terrorists who pose a risk to our security, shows how our armed forces are ready to step up, continuously, ensuring Britain's security domestically and powerful internationally."
In December, the American forces carried out what it described as a "large-scale strike" targeting Islamic State objectives in the country, subsequent to an ambush killed two American soldiers and a civilian interpreter in the Palmyra area.
The UN says Islamic State still has roughly 5-7 thousand fighters in Syria and Iraq.