British Air Force Typhoon fighter aircraft have operated alongside French aircraft in a joint strike on an subterranean weapons facility in Syria employed by the IS group, per a report from the UK Ministry of Defence.
The facility, identified by reconnaissance, was thought to be containing munitions and bombs, the statement said, and was situated in hills just above 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... preliminary assessments are that the target was engaged successfully," the ministry announced.
There was no indication of any civilian impact in the strike late on Saturday and each participating jet made a safe return, the defence officials confirmed.
The British jets were backed up by a Voyager tanker plane.
The Islamic State group - alternatively referred to as the so-called Islamic State - established extremist governance over large swathes of both Syria and Iraq until 2019.
"This action shows our UK leadership, and commitment to operate in unison with allied nations, to eliminate any resurgence of the terrorist group and their dangerous and violent ideologies in the area," the British Defence Secretary the Defence Secretary said.
British military aircraft have conducted overwatch operations over Syrian airspace to "deter any efforts to regroup" of the group following its defeat at the Baghuz confrontation in 2019, the ministry said.
"I extend gratitude to the personnel of our armed forces involved in this mission for their expertise and their bravery," he said. "They were part of thousands of UK service members stationed over Christmas and New Year. This operation, to eliminate terrorist threats who threaten our safety, demonstrates how British military are always on standby, all year round, keeping Britain secure at home and powerful internationally."
Last December, the American forces carried out what it called a "large-scale strike" on Islamic State objectives in Syria, following an attack resulted in the deaths of two US troops and a civilian interpreter in Palmyra.
The UN says IS still has an estimated 5,000 to 7,000 combatants in both countries.
