British Air Force Typhoon jets have conducted a mission with French warplanes in a coordinated attack on an hidden munitions depot in Syria operated by the Islamic State group (IS), according to the UK Ministry of Defence.
The location, located using intelligence, was believed to be housing weapons and explosive materials, the statement said, and was located in mountains just above Palmyra in the heart of Syria.
"Our aircraft used Paveway IV guided bombs to target a several entry passages providing entry to the site... early reports suggest the objective was successfully hit," the ministry announced.
There was no evidence of any harm to civilians in the attack on Saturday evening and all the aircraft returned to base without incident, the MoD added.
The British jets were backed up by a Voyager tanker plane.
IS - referred to as ISIS - enforced extremist governance over parts of Iraq and Syria until 2019.
"This strike shows British leadership, and determination to work closely with our allies, to eliminate any re-emergence of the terrorist group and their harmful and extremist ideologies in the Middle East," UK Defence Secretary the Defence Secretary said.
UK warplanes have carried out patrols over Syrian airspace to "deter any efforts to regroup" of IS subsequent to its routing at the climactic battle in Baghuz in 2019, the ministry said.
"I want to thank every member of British forces participating in this operation for their skill and their bravery," the Defence Secretary said. "They were among a great many British troops deployed over the festive period. This action, to take out terrorist threats who pose a risk to our way of life, highlights how British military are always on standby, continuously, ensuring Britain's security at home and powerful internationally."
During December, the US military executed what it described as a "massive strike" on Daesh sites in Syria, following an assault resulted in the deaths of two American soldiers and a civilian interpreter in the Palmyra area.
The United Nations estimates Islamic State still maintains an estimated 5,000 to 7,000 fighters in Syria and Iraq.
