Syrian state media said Monday an attack on a civilian bus in northern Syria killed 13 people, including 11 government troops.
The state-run SANA news agency said the attack happened in the Jabal al-Bishri area of Raqqa province.
The Islamic State militant group later claimed responsibility for the ambush in a post on the Telegram messaging app.
A Syrian Defense Ministry statement, quoted by state media, said in addition to the 13 deaths, three soldiers were wounded in the assault.
The report did not specify how the attack took place.
Raqqa province was once controlled by Islamic State, who has claimed its main city of Raqqa the de facto capital of their self-declared caliphate encompassing parts of Syria and Iraq.
The group was defeated in 2019, but IS sleeper cells still operate in the area.
Some information for this report came from The Associated Press and Reuters.