RAF Typhoon jets have joined forces with France's air force in a combined operation targeting an underground arms cache in Syrian territory operated by the IS group, per a report from the UK Ministry of Defence.
The location, identified by surveillance, was believed to be housing weapons and explosive materials, the statement said, and was located in mountainous terrain just above the ancient city of Palmyra in central Syria.
"Our aircraft utilized precision-guided Paveway IV munitions to target a number of access tunnels down to the facility... initial indications indicate the objective was successfully hit," the ministry announced.
There was no indication of any civilian casualties in the operation late on Saturday and all the aircraft made a safe return, the MoD added.
The Typhoon fighters were supported by a Voyager refuelling tanker.
Daesh - referred to as Daesh - established extremist governance over parts of Syria and Iraq prior to its 2019 collapse.
"This operation underscores the UK's leading role, and commitment to work closely with allied nations, to eliminate any re-emergence of Daesh and their harmful and extremist ideologies in the Middle East," Britain's Defence Chief the minister stated.
British military aircraft have performed surveillance missions over Syrian airspace to "deter any attempted comeback" of Islamic State subsequent to its military defeat at the battle of Baghuz in the year 2019, the MoD reported.
"I extend gratitude to every member of our armed forces who took part in this strike for their expertise and their courage," the Defence Secretary said. "Including them were numerous British personnel stationed over the holidays. This mission, to take out militants who pose a risk to our way of life, highlights how UK forces are always on standby, continuously, ensuring Britain's security domestically and influential overseas."
Last December, the American forces conducted what it termed a "massive strike" targeting Islamic State objectives in Syria, following an attack claimed the lives of two American soldiers and a local interpreter in the Palmyra area.
The UN reports Islamic State still maintains an estimated 5,000 to 7,000 combatants in both countries.
