Two explosions killed at least 95 people and injured nearly 300 of others in the centre of the Turkish capital Ankara on Saturday.
The explosions occurred near a train station where people were gathering for a peace march to protest against the conflict between the state and Kurdish fighters in southeast Turkey.
Eyewitnesses told the AFP news agency several bodies were seen lying on the ground.
The anti-government peace rally was being organized by leftist groups.
Turkish Prime Minister Ahmet Davutoglu was to hold a meeting with security chief after the blast, the prime minister’s office said.