RAF Typhoon jets have conducted a mission with French warplanes in a coordinated attack on an hidden munitions depot in Syria employed by the IS group, according to the British defence ministry.
The site, identified by intelligence, was thought to be housing weapons and explosive materials, the release indicated, and was situated in hills just above the ancient city of Palmyra in central Syria.
"Our fighter planes used Paveway IV guided bombs to strike a several entry passages down to the facility... preliminary assessments suggest the strike was effective," officials stated.
There was no indication of any harm to civilians in the operation late on Saturday and all the aircraft made a safe return, the MoD added.
The British jets were assisted by a Voyager refuelling tanker.
Daesh - referred to as Daesh - enforced jihadist rule over parts of Syria and Iraq prior to its 2019 collapse.
"This operation underscores the UK's leading role, and resolve to operate in unison with our allies, to eliminate any revival of IS and their harmful and extremist ideologies in the Middle East," UK Defence Secretary the minister remarked.
RAF aircraft have conducted overwatch operations over Syria to "forestall any attempted resurgence" of the group subsequent to its military defeat at the climactic battle in Baghuz in the year 2019, the ministry said.
"I extend gratitude to the personnel of British forces involved in this operation for their professionalism and their valour," Healey added. "They were among thousands of UK service members stationed over Christmas and New Year. This mission, to eliminate militants who pose a risk to our way of life, highlights how UK forces are ready to step up, all year round, ensuring Britain's security within its borders and influential overseas."
Last December, the American forces conducted what it termed a "major assault" targeting IS targets in Syria, subsequent to an ambush resulted in the deaths of two American soldiers and a civilian interpreter in Palmyra.
The United Nations estimates IS still maintains an estimated 5,000 to 7,000 militants in Iraq and Syria.
