RAF Typhoon jets have conducted a mission with France's air force in a coordinated attack on an subterranean weapons facility in Syria operated by the IS group, according to the UK Ministry of Defence.
The site, identified by reconnaissance, was believed to be containing munitions and bombs, the announcement noted, and was situated in mountainous terrain just to the north of the ancient city of Palmyra in Syria's central region.
"Our fighter planes employed precision-guided Paveway IV munitions to target a several approach shafts providing entry to the facility... initial indications suggest the target was engaged successfully," officials stated.
There was no sign of any civilian casualties in the attack conducted Saturday night and every plane involved made a safe return, the ministry further stated.
The British jets were assisted by a Voyager refuelling tanker.
IS - also known as the so-called Islamic State - established jihadist rule over large swathes of both Syria and Iraq until 2019.
"This strike demonstrates British leadership, and determination to stand shoulder to shoulder with allied nations, to eradicate any revival of Daesh and their violent and radical beliefs in the area," UK Defence Secretary the Defence Secretary said.
RAF aircraft have performed overwatch operations over Syria to "deter any attempted comeback" of Islamic State subsequent to its defeat at the battle of Baghuz in the year 2019, the authorities noted.
"I extend gratitude to all the members of the UK armed forces who took part in this operation for their skill and their bravery," he added. "They were part of numerous UK service members on duty over the festive period. This operation, to take out militants who pose a risk to our way of life, shows how UK forces are prepared to act, throughout the year, protecting the UK at home and strong abroad."
In December, the American forces carried out what it termed a "large-scale strike" against Daesh sites in Syria, subsequent to an ambush claimed the lives of two US troops and a local interpreter in Palmyra.
The U.N. estimates Daesh still has an estimated 5,000 to 7,000 combatants in Iraq and Syria.
