RAF Typhoon jets have operated alongside French aircraft in a coordinated attack targeting an hidden munitions depot in Syria operated by the Daesh militant organization, according to the British defence ministry.
The facility, identified by reconnaissance, was assessed as storing arms and explosives, the statement said, and was positioned in mountainous terrain just to the north of Palmyra in Syria's central region.
"The RAF jets used laser-guided Paveway IV weapons to target a series of approach shafts leading to the facility... preliminary assessments are that the objective was successfully hit," the MoD said.
There was no indication of any civilian casualties in the attack conducted Saturday night and all the aircraft returned safely, the ministry further stated.
The British jets were assisted by a Voyager tanker plane.
IS - also known as the so-called Islamic State - imposed jihadist rule over parts of both Syria and Iraq until 2019.
"This action underscores British leadership, and commitment to operate in unison with our partners, to stamp out any re-emergence of Daesh and their dangerous and violent ideologies in the area," the British Defence Secretary John Healey stated.
British military aircraft have carried out surveillance missions over Syrian airspace to "deter any efforts to regroup" of Islamic State following its routing at the climactic battle in Baghuz in 2019, the MoD reported.
"I must thank all the members of the UK armed forces participating in this strike for their skill and their valour," the Defence Secretary said. "They were among numerous British troops stationed over the festive period. This mission, to remove dangerous terrorists who threaten our way of life, highlights how British military are prepared to act, continuously, protecting the UK domestically and strong abroad."
During December, the American forces executed what it called a "large-scale strike" on IS targets in Syria, following an ambush killed two US servicemembers and a civilian linguist in Palmyra.
The U.N. reports Daesh still maintains roughly 5-7 thousand militants in Syria and Iraq.
