British Air Force Typhoon fighter aircraft have conducted a mission with France's air force in a joint strike on an subterranean weapons facility in Syrian territory used by the Islamic State group (IS), as stated by the British defence ministry.
The facility, pinpointed through intelligence, was assessed as housing weapons and explosive materials, the statement said, and was located in hills just north of the historic site of Palmyra in Syria's central region.
"Our aircraft used laser-guided Paveway IV weapons to target a several access tunnels providing entry to the depot... preliminary assessments indicate the target was engaged successfully," the MoD said.
There was no sign of any civilian impact in the attack conducted Saturday night and each participating jet returned to base without incident, the MoD added.
The British jets were backed up by a Voyager aerial refuelling aircraft.
Daesh - alternatively referred to as Daesh - imposed jihadist rule over parts of both Syria and Iraq prior to its 2019 collapse.
"This action underscores British leadership, and resolve to stand shoulder to shoulder with allied nations, to stamp out any revival of the terrorist group and their dangerous and violent ideologies in the region," UK Defence Secretary John Healey said.
British military aircraft have performed surveillance missions over Syrian airspace to "forestall any attempted resurgence" of the group after its military defeat at the climactic battle in Baghuz in the year 2019, the MoD reported.
"I must thank all the members of our armed forces participating in this strike for their professionalism and their bravery," he added. "They were among a great many British troops stationed over the holidays. This operation, to eliminate militants who endanger our security, highlights how our armed forces are always on standby, all year round, keeping Britain secure within its borders and powerful internationally."
Last December, the US military conducted what it termed a "major assault" targeting Islamic State objectives in the country, following an attack claimed the lives of two American soldiers and a civilian linguist in the Palmyra area.
The UN reports Islamic State still has roughly 5-7 thousand militants in both countries.
