Syria's government has "approved" a ceasefire deal brokered by its Russian ally and the United States, state news agency SANA reported on Saturday.

"The Syrian government has approved the agreement, and a cessation of hostilities will begin in Aleppo for humanitarian reasons," the agency wrote, citing "informed sources."

The deal agreed by Moscow and Washington calls for a halt to fighting across the country and increased humanitarian aid for the battered city of Aleppo.