At least 27 people were killed and 75 more wounded in a blast in the Turkish capital Ankara on Sunday evening, broadcaster CNN Turk said, citing the local governor.
CNN Turk had earlier said 25 had been killed. later it said that two more people had died en route to hospital. A senior security official told Reuters the blast was believed to have been caused by a suicide car bombing.
Ambulances rushed to the scene of the explosion on Kizilay square, a key hub in the city, and television pictures showed burnt-out vehicles, including a bus.
It comes just weeks after almost 30 people were killed in a car bomb attack targeting the military in the city on February 18.