At least fifteen people were wounded when suspected car bomb hit the center of Ankara on Tuesday.
Some media reports said two people were killed, while a local mayor said nobody was dead but three people were seriously wounded.
Local police were not immediately available for comment, but Deputy Prime Minister Bulent Arinc said the blast was caused by a car bomb. Other officials said a burning gas canister had been tossed onto a vehicle.
Ambulances and fire engines rushed to the scene. Police set up a security cordon at the scene of the blast in case of a secondary explosion.
Turkey has previously been subjected to bomb attacks by Kurdish separatists and Islamist groups linked to al Qaeda.
