Royal Air Force Typhoon jets have operated alongside French warplanes in a combined operation on an underground arms cache in Syrian territory employed by the IS group, as stated by the UK's MoD.
The facility, pinpointed through intelligence, was thought to be storing arms and explosives, the release indicated, and was situated in mountains just north of the historic site of Palmyra in Syria's central region.
"The RAF jets used Paveway IV guided bombs to hit a number of approach shafts providing entry to the facility... initial indications are that the target was engaged successfully," officials stated.
There was no evidence of any civilian casualties in the attack conducted Saturday night and all the aircraft returned to base without incident, the defence officials confirmed.
The British jets were assisted by a Voyager tanker plane.
Daesh - also known as ISIS - enforced jihadist rule over large swathes of Iraq and Syria prior to its 2019 collapse.
"This action underscores British leadership, and resolve to operate in unison with our allies, to eliminate any resurgence of IS and their dangerous and violent ideologies in the region," Britain's Defence Chief John Healey remarked.
UK warplanes have conducted overwatch operations over Syrian airspace to "deter any attempted resurgence" of the group after its defeat at the battle of Baghuz in 2019, the ministry said.
"I extend gratitude to all the members of our armed forces participating in this strike for their professionalism and their courage," the Defence Secretary added. "They were part of a great many British personnel deployed over the festive period. This operation, to eliminate terrorist threats who threaten our way of life, highlights how British military are prepared to act, continuously, protecting the UK within its borders and strong abroad."
During December, the United States armed forces conducted what it described as a "major assault" against Islamic State objectives in Syria, subsequent to an assault claimed the lives of two US troops and a civilian interpreter in Palmyra.
The UN estimates Islamic State still boasts an estimated 5,000 to 7,000 militants in both countries.
