British Air Force Typhoon FGR4s have conducted a mission with France's air force in a combined operation on an subterranean weapons facility in Syria operated by the IS group, per a report from the UK Ministry of Defence.
The facility, located using reconnaissance, was thought to be housing weapons and explosive materials, the statement said, and was situated in mountainous terrain just to the north of Palmyra in the heart of Syria.
"The RAF jets utilized Paveway IV guided bombs to strike a number of access tunnels down to the site... initial indications are that the target was engaged successfully," the ministry announced.
There was no evidence of any civilian casualties in the strike conducted Saturday night and each participating jet returned to base without incident, the MoD added.
The Typhoon FGR4s were assisted by a Voyager tanker plane.
The Islamic State group - also known as ISIS - imposed extremist governance over significant areas in Iraq and Syria before its territorial defeat in 2019.
"This operation shows the UK's leading role, and resolve to operate in unison with our partners, to eradicate any resurgence of Daesh and their harmful and extremist ideologies in the Middle East," UK Defence Secretary the Defence Secretary said.
British military aircraft have conducted overwatch operations over Syrian airspace to "prevent any efforts to regroup" of the group after its military defeat at the Baghuz confrontation in 2019, the authorities noted.
"I must thank every member of the UK armed forces who took part in this mission for their professionalism and their bravery," the Defence Secretary added. "They were part of thousands of British personnel on duty over the festive period. This action, to take out terrorist threats who pose a risk to our security, highlights how British military are prepared to act, all year round, keeping Britain secure at home and powerful internationally."
In December, the American forces conducted what it termed a "massive strike" targeting IS targets in the country, following an attack resulted in the deaths of two American soldiers and a civilian linguist in the Palmyra area.
The United Nations reports Daesh still maintains roughly 5-7 thousand fighters in both countries.
