In Balikesir, western Turkey, 15 people were killed in a bus accident.
17 injured are being treated in surrounding hospitals, the provincial governor of the state news agency Anadolu said on Sunday.
The accident happened early in the morning.
The broadcaster TRT reported that the coach had drifted off the road and rolled over.
TV pictures showed the damaged bus in a meadow off the road.
Rescue workers recovered the bodies.
The cause of the accident was initially unclear.