RAF Typhoon FGR4s have operated alongside French warplanes in a coordinated attack targeting an underground arms cache in Syria operated by the Islamic State group (IS), according to the UK Ministry of Defence.
The site, located using reconnaissance, was thought to be containing munitions and bombs, the announcement noted, and was positioned in hills just above the historic site of Palmyra in Syria's central region.
"Our aircraft utilized Paveway IV guided bombs to strike a several entry passages down to the site... early reports are that the target was engaged successfully," the MoD said.
There was no indication of any harm to civilians in the operation late on Saturday and every plane involved returned to base without incident, the ministry further stated.
The Typhoon FGR4s were supported by a Voyager tanker plane.
Daesh - referred to as Daesh - enforced extremist governance over significant areas in Syria and Iraq prior to its 2019 collapse.
"This strike shows British leadership, and determination to stand shoulder to shoulder with allied nations, to stamp out any resurgence of Daesh and their violent and radical beliefs in the area," Britain's Defence Chief John Healey remarked.
UK warplanes have carried out patrols over Syrian airspace to "prevent any efforts to regroup" of Islamic State subsequent to its routing at the Baghuz confrontation in 2019, the ministry said.
"I must thank all the members of British forces involved in this strike for their skill and their bravery," the Defence Secretary commented. "Including them were a great many UK service members on duty over the festive period. This operation, to eliminate militants who pose a risk to our way of life, highlights how our armed forces are always on standby, throughout the year, ensuring Britain's security within its borders and influential overseas."
In December, the American forces carried out what it called a "major assault" on Islamic State objectives in Syria, subsequent to an ambush killed two US troops and a civilian linguist in Palmyra.
The UN reports Islamic State still maintains between 5,000 and 7,000 militants in Iraq and Syria.
