Royal Air Force Typhoon jets have joined forces with French warplanes in a joint strike on an underground arms cache in Syria employed by the Islamic State group (IS), as stated by the UK's MoD.
The location, pinpointed through surveillance, was assessed as housing weapons and explosive materials, the release indicated, and was situated in mountainous terrain just north of Palmyra in central Syria.
"The RAF jets employed Paveway IV guided bombs to target a several approach shafts leading to the site... initial indications indicate the objective was successfully hit," the MoD said.
There was no sign of any civilian casualties in the attack on Saturday evening and every plane involved made a safe return, the MoD added.
The British jets were supported by a Voyager tanker plane.
Daesh - alternatively referred to as the so-called Islamic State - imposed extremist governance over significant areas in both Syria and Iraq until 2019.
"This operation shows our UK leadership, and resolve to work closely with our partners, to stamp out any revival of the terrorist group and their dangerous and violent ideologies in the Middle East," UK Defence Secretary the Defence Secretary stated.
UK warplanes have conducted surveillance missions over Syria to "deter any attempted resurgence" of Islamic State following its routing at the battle of Baghuz in 2019, the ministry said.
"I extend gratitude to all the members of British forces participating in this strike for their expertise and their bravery," Healey commented. "Including them were numerous UK service members stationed over the holidays. This mission, to remove militants who pose a risk to our security, shows how our armed forces are prepared to act, throughout the year, protecting the UK within its borders and powerful internationally."
In December, the American forces carried out what it called a "massive strike" on Islamic State objectives in the country, following an ambush claimed the lives of two American soldiers and a civilian linguist in Palmyra.
The UN says IS still has roughly 5-7 thousand combatants in both countries.