Royal Air Force Typhoon fighter aircraft have joined forces with French aircraft in a coordinated attack on an underground arms cache in Syrian territory operated by the IS group, as stated by the UK's MoD.
The location, located using intelligence, was thought to be storing arms and explosives, the statement said, and was positioned in mountainous terrain just above the ancient city of Palmyra in central Syria.
"Our aircraft employed laser-guided Paveway IV weapons to strike a number of access tunnels providing entry to the site... early reports indicate the objective was successfully hit," the ministry announced.
There was no evidence of any harm to civilians in the operation on Saturday evening and each participating jet returned to base without incident, the defence officials confirmed.
The Typhoon fighters were backed up by a Voyager tanker plane.
Daesh - also known as the so-called Islamic State - imposed extremist governance over large swathes of Iraq and Syria until 2019.
"This strike underscores our UK leadership, and resolve to operate in unison with allied nations, to eradicate any resurgence of the terrorist group and their dangerous and violent ideologies in the area," Britain's Defence Chief the minister stated.
British military aircraft have carried out patrols over Syria to "prevent any efforts to regroup" of IS following its routing at the battle of Baghuz in the year 2019, the authorities noted.
"I must thank every member of our armed forces who took part in this strike for their skill and their bravery," the Defence Secretary added. "They were among numerous British troops deployed over Christmas and New Year. This operation, to remove militants who endanger our way of life, shows how British military are always on standby, continuously, ensuring Britain's security domestically and powerful internationally."
Last December, the US military executed what it described as a "massive strike" targeting Daesh sites in Syria, subsequent to an attack resulted in the deaths of two US troops and a civilian interpreter in Palmyra.
The United Nations says Islamic State still boasts an estimated 5,000 to 7,000 militants in both countries.
