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.

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

The airstrikes on ISIS targets are being conducted in response to the killing of two U.S. Army soldiers and an civilian contractor by a lone terrorist in Palmyra, Syria.

The clashes came two days after a bombing at an Alawite mosque in the city of Homs killed eight people and wounded 18 others during prayers.

A former Assad brigadier-general for the elite Quwwat al-Nimr unit, Suheil al-Hassan, is among those allegedly implicated in the recording.

Jordan confirmed that its air force took part in the U.S. air strikes "targeting several ISIS positions in southern Syria."

U.S. Central Command, which oversees the Middle East, said 11 missions were carried out over the past 10 days.

At least four people have been killed and dozens wounded in clashes on Syria’s coast in the aftermath of the deadly bombing of an Alawite mosque.

The United States' latest coordinated strikes against ISIS targets comes as Washington signals sustained pressure on the terror group.

First deployed with the RAF above Libya in 2011, the Typhoon has since been used in Iraq and Syria since 2015 as Western nations have sought to strike Islamic State targets. The UK is among several countries that have stocks of the Typhoon, along with Germany, Italy and Spain.

Three rockets hit the Mazzeh area of the Syrian capital Damascus on Saturday, local authorities said, adding that one damaged a mosque and another landed near a military airport. Syria's official SANA news agency had earlier reported that an unidentified missile had struck the area without causing any casualties.