A huge explosion has taken place in the Kizilay neighbourhood of the Turkish capital Ankara, with reports of injuries.
State-run broadcaster TRT said a car bomb had exploded near a bus stop.
Witnesses say the explosion happened near the main bus station on Ataturk boulevard and close to many government ministries. Some vehicles were on fire.
Last month, a bomb attack on a military convoy in Ankara killed 28 people and wounded dozens more.
The Turkish Hurriyet newspaper said the latest blast happened at about 18:35 (16:35 GMT) in the Guven park in Kizilay, and that many ambulances were at the scene.
It said that the area was being evacuated in case there was a second attack.
Last month's bombing was claimed by a Kurdish militant group, the Kurdistan Freedom Hawks (TAK). It said on its website that the attack was in retaliation for the policies of President Recep Tayyip Erdogan.
Turkey, however, blamed a Syrian national who was a member of another Kurdish group.
Last October, more than 100 people were killed in a double-suicide bombing at a Kurdish peace rally in Ankara.