RAF Typhoon FGR4s have joined forces with French warplanes in a combined operation on an hidden munitions depot in Syrian territory employed by the IS group, as stated by the UK Ministry of Defence.
The location, located using surveillance, was thought to be storing arms and explosives, the announcement noted, and was located in hills just to the north of the ancient city of Palmyra in the heart of Syria.
"The RAF jets used laser-guided Paveway IV weapons to strike a number of access tunnels leading to the site... initial indications suggest the objective was successfully hit," officials stated.
There was no sign of any civilian casualties in the operation late on Saturday and every plane involved returned to base without incident, the ministry further stated.
The British jets were backed up by a Voyager refuelling tanker.
Daesh - alternatively referred to as Daesh - enforced jihadist rule over significant areas in Iraq and Syria prior to its 2019 collapse.
"This operation demonstrates British leadership, and determination to operate in unison with allied nations, to stamp out any resurgence of Daesh and their dangerous and violent ideologies in the area," Britain's Defence Chief John Healey stated.
British military aircraft have conducted patrols over Syria to "forestall any attempted resurgence" of the group after its military defeat at the battle of Baghuz in 2019, the ministry said.
"I extend gratitude to all the members of the UK armed forces involved in this strike for their professionalism and their valour," Healey said. "Including them were numerous UK service members stationed over the festive period. This mission, to remove terrorist threats who threaten our safety, demonstrates how British military are prepared to act, all year round, keeping Britain secure domestically and strong abroad."
Last December, the American forces carried out what it called a "major assault" on Islamic State objectives in Syria, after an attack killed two US troops and a local interpreter in Palmyra.
The United Nations reports IS still has roughly 5-7 thousand militants in both countries.