Royal Air Force Typhoon fighter aircraft have joined forces with French aircraft in a combined operation against an underground arms cache in Syria operated by the IS group, as stated by the UK's MoD.
The facility, located using surveillance, was thought to be housing weapons and explosive materials, the release indicated, and was located in mountainous terrain just north of the ancient city of Palmyra in central Syria.
"Our fighter planes used Paveway IV guided bombs to strike a several approach shafts leading to the site... early reports suggest the target was engaged successfully," the MoD said.
There was no indication of any harm to civilians in the attack late on Saturday and each participating jet returned to base without incident, the ministry further stated.
The British jets were supported by a Voyager tanker plane.
The Islamic State group - alternatively referred to as the so-called Islamic State - imposed extremist governance over large swathes of Iraq and Syria until 2019.
"This strike demonstrates the UK's leading role, and commitment to stand shoulder to shoulder with our partners, to eradicate any revival of the terrorist group and their harmful and extremist ideologies in the area," UK Defence Secretary the Defence Secretary said.
UK warplanes have carried out patrols over Syria to "deter any attempted resurgence" of Islamic State after its defeat at the Baghuz confrontation in the year 2019, the ministry said.
"I extend gratitude to all the members of our armed forces who took part in this strike for their professionalism and their bravery," he said. "They were among a great many British personnel stationed over Christmas and New Year. This operation, to remove terrorist threats who threaten our way of life, shows how British military are ready to step up, throughout the year, keeping Britain secure at home and strong abroad."
During December, the American forces carried out what it described as a "large-scale strike" targeting Daesh sites in the country, after an assault resulted in the deaths of two American soldiers and a civilian linguist in the Palmyra area.
The U.N. reports Daesh still maintains between 5,000 and 7,000 militants in Iraq and Syria.
