British Air Force Typhoon FGR4s have conducted a mission with France's air force in a coordinated attack against an hidden munitions depot in Syrian territory employed by the IS group, per a report from the UK Ministry of Defence.
The facility, located using surveillance, was thought 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 fighter planes utilized Paveway IV guided bombs to strike a several entry passages down to the facility... initial indications are that the strike was effective," the MoD said.
There was no evidence of any harm to civilians in the operation on Saturday evening and each participating jet returned to base without incident, the defence officials confirmed.
The British jets were backed up by a Voyager tanker plane.
The Islamic State group - also known as Daesh - established militant control over parts of Syria and Iraq before its territorial defeat in 2019.
"This action shows the UK's leading role, and resolve to work closely with allied nations, to eliminate any revival of Daesh and their violent and radical beliefs in the region," the British Defence Secretary John Healey stated.
RAF aircraft have carried out overwatch operations over Syria to "prevent any attempted resurgence" of IS following its military defeat at the Baghuz confrontation in 2019, the authorities noted.
"I extend gratitude to all the members of our armed forces participating in this operation for their skill and their courage," the Defence Secretary added. "They were part of thousands of British troops stationed over Christmas and New Year. This mission, to take out terrorist threats who endanger our security, highlights how UK forces are prepared to act, throughout the year, protecting the UK at home and strong abroad."
Last December, the US military conducted what it termed a "large-scale strike" on Islamic State objectives in the country, after an attack resulted in the deaths of two US servicemembers and a civilian linguist in the Palmyra area.
The United Nations says Islamic State still maintains between 5,000 and 7,000 fighters in Syria and Iraq.
