Royal Air Force Typhoon FGR4s have operated alongside French aircraft in a joint strike on an underground arms cache in Syria operated by the IS group, according to the UK Ministry of Defence.
The location, identified by reconnaissance, was believed to be housing weapons and explosive materials, the statement said, and was situated in hills just north of the historic site of Palmyra in Syria's central region.
"Our aircraft utilized precision-guided Paveway IV munitions to strike a several entry passages down to the site... initial indications indicate the target was engaged successfully," the ministry announced.
There was no evidence of any civilian impact in the strike conducted Saturday night and each participating jet returned safely, the ministry further stated.
The British jets were backed up by a Voyager tanker plane.
Daesh - also known as the so-called Islamic State - imposed militant control over large swathes of both Syria and Iraq before its territorial defeat in 2019.
"This action demonstrates the UK's leading role, and determination to operate in unison with allied nations, to eliminate any re-emergence of Daesh and their dangerous and violent ideologies in the Middle East," the British Defence Secretary the Defence Secretary remarked.
British military aircraft have performed patrols over Syrian airspace to "deter any attempted resurgence" of the group subsequent to its defeat at the climactic battle in Baghuz in 2019, the MoD reported.
"I want to thank all the members of the UK armed forces who took part in this operation for their professionalism and their bravery," Healey commented. "Including them were a great many UK service members deployed over the holidays. This operation, to take out militants who endanger our way of life, demonstrates how British military are always on standby, continuously, keeping Britain secure at home and powerful internationally."
During December, the United States armed forces conducted what it termed a "massive strike" targeting Daesh sites in Syria, following an ambush claimed the lives of two American soldiers and a civilian linguist in the Palmyra area.
The United Nations reports Daesh still boasts between 5,000 and 7,000 militants in Iraq and Syria.
