British Air Force Typhoon FGR4s have operated alongside French warplanes in a coordinated attack against an subterranean weapons facility in Syria used by the Islamic State group (IS), according to the British defence ministry.
The location, identified by surveillance, was believed to be containing munitions and bombs, the release indicated, and was positioned in mountainous terrain just north of the historic site of Palmyra in the heart of Syria.
"The RAF jets employed Paveway IV guided bombs to hit a number of entry passages leading to the depot... initial indications suggest the target was engaged successfully," the ministry announced.
There was no indication of any civilian impact in the attack conducted Saturday night and each participating jet made a safe return, the MoD added.
The Typhoon FGR4s were backed up by a Voyager aerial refuelling aircraft.
Daesh - alternatively referred to as ISIS - enforced jihadist rule over large swathes of Syria and Iraq before its territorial defeat in 2019.
"This strike shows British leadership, and determination to operate in unison with our partners, to stamp out any resurgence of the terrorist group and their dangerous and violent ideologies in the area," Britain's Defence Chief the minister said.
UK warplanes have conducted surveillance missions over Syrian airspace to "prevent any attempted resurgence" of Islamic State subsequent to its routing at the battle of Baghuz in 2019, the MoD reported.
"I want to thank the personnel of the UK armed forces participating in this strike for their skill and their valour," Healey said. "Including them were numerous British personnel on duty over the holidays. This mission, to remove militants who pose a risk to our way of life, demonstrates how British military are ready to step up, continuously, protecting the UK within its borders and powerful internationally."
In December, the US military conducted what it called a "major assault" against Islamic State objectives in Syria, after an ambush claimed the lives of two US servicemembers and a local interpreter in Palmyra.
The U.N. reports Islamic State still maintains roughly 5-7 thousand combatants in Iraq and Syria.
