RAF Typhoon jets have operated alongside France's air force in a joint strike against an hidden munitions depot in Syria used by the Daesh militant organization, per a report from the British defence ministry.
The location, located using reconnaissance, was assessed as containing munitions and bombs, the release indicated, and was situated in mountainous terrain just north of the ancient city of Palmyra in the heart of Syria.
"The RAF jets utilized precision-guided Paveway IV munitions to hit a several entry passages leading to the facility... early reports suggest the objective was successfully hit," the MoD said.
There was no evidence of any civilian impact in the operation on Saturday evening and all the aircraft made a safe return, the MoD added.
The Typhoon FGR4s were backed up by a Voyager tanker plane.
IS - also known as Daesh - established extremist governance over large swathes of both Syria and Iraq before its territorial defeat in 2019.
"This action underscores British leadership, and determination to operate in unison with allied nations, to eliminate any re-emergence of Daesh and their violent and radical beliefs in the Middle East," UK Defence Secretary John Healey remarked.
British military aircraft have carried out overwatch operations over Syria to "deter any attempted comeback" of Islamic State after its defeat at the battle of Baghuz in 2019, the ministry said.
"I must thank the personnel of British forces involved in this strike for their professionalism and their courage," he commented. "Including them were thousands of UK service members on duty over Christmas and New Year. This mission, to eliminate militants who threaten our security, demonstrates how British military are prepared to act, throughout the year, ensuring Britain's security domestically and influential overseas."
In December, the United States armed forces carried out what it called a "large-scale strike" against Daesh sites in the country, subsequent to an assault resulted in the deaths of two US troops and a civilian linguist in Palmyra.
The United Nations reports Islamic State still maintains an estimated 5,000 to 7,000 militants in Iraq and Syria.