British Air Force Typhoon fighter aircraft have joined forces with French warplanes in a coordinated attack targeting an underground arms cache in Syria operated by the Daesh militant organization, as stated by the British defence ministry.
The site, located using reconnaissance, was assessed as storing arms and explosives, the statement said, and was positioned in mountains just north of the ancient city of Palmyra in central Syria.
"Our aircraft used Paveway IV guided bombs to strike a series of approach shafts down to the site... initial indications are that the objective was successfully hit," the MoD said.
There was no indication of any civilian impact in the strike on Saturday evening and all the aircraft returned safely, the MoD added.
The Typhoon FGR4s were backed up by a Voyager tanker plane.
Daesh - also known as the so-called Islamic State - established extremist governance over significant areas in Syria and Iraq before its territorial defeat in 2019.
"This operation underscores British leadership, and determination to stand shoulder to shoulder with allied nations, to stamp out any revival of Daesh and their dangerous and violent ideologies in the region," UK Defence Secretary the Defence Secretary remarked.
UK warplanes have conducted surveillance missions over Syrian airspace to "deter any attempted comeback" of Islamic State after its routing at the Baghuz confrontation in 2019, the ministry said.
"I must thank every member of the UK armed forces involved in this strike for their professionalism and their bravery," Healey added. "They were among a great many British troops deployed over Christmas and New Year. This operation, to take out terrorist threats who pose a risk to our safety, shows how British military are prepared to act, all year round, protecting the UK at home and strong abroad."
In December, the US military conducted what it termed a "large-scale strike" on Daesh sites in Syria, following an ambush claimed the lives of two American soldiers and a civilian interpreter in the Palmyra area.
The UN estimates IS still maintains an estimated 5,000 to 7,000 combatants in Syria and Iraq.