Despite its defeat in Syria in 2019, IS' sleeper cells still carry out deadly attacks in Syria and Iraq, where the extremists once declared their caliphate.

British and French aircraft struck an underground ISIS facility in Syria believed to be used for weapons storage. RAF Typhoon jets targeted the site north of Palmyra.

A Syrian source close to President Ahmed al-Shara says Damascus is open to a U.S.-backed security initiative with Israel, including a joint coordination mechanism

RAF Typhoon jets joined French aircraft in a strike on an Islamic State group arms store in Syria, UK officials say.

“If Syria fails to integrate all armed forces and former opposition groups into its army, it faces an existential challenge of fragmentation and disintegration,” Caroline Rose, director of military and national security priorities at the New Lines Institute, told Al Jazeera.

The strikes on Saturday evening hit the site, thought to be used by Isis militants to store weapons and explosives, in a mountainous area north of the Syrian city of Palmyra, according to a statement from the UK government. French jets joined the strikes by RAF Typhoon FGR4s.

Although ISIS was territorially defeated in 2019, its militants remain a nuisance to the Syria and Iraqi governments, and Western nations have stayed involved in efforts to combat them.

Images shared by Syria's state-run news agency showed blood on carpets, holes in the walls, shattered windows and fire damage.

Syria has begun circulating new currency bills, a year after Bashar Assad's government fell. Central Bank Governor Mokhles Nazer said Saturday that the exchange of old Syrian pounds with new banknotes has officially started.

Syria has temporarily suspended flights to and from Aleppo International Airport following attacks by YPG terror group-led SDF, authorities said. The General Authority of Civil Aviation said in a statement that flights were halted for 24 hours with immediate effect to ensure the safety of passengers, aircrews and airport operations.