Amateur video footage shows the aftermath of an explosion in the Turkish capital, Ankara.
The blast took place in the Kizilay neighbourhood, less than a kilometre from government buildings, destroying vehicles and damaging nearby shops.
The cause of the explosion was unclear.
Deputy Prime Minister Bulent Arinc suggested the blast was a bomb, although Ankara's governor said it may have been caused by a burning gas cylinder.
Besir Atalay, another of Turkey's four deputy premiers, said 15 people were wounded, five of them seriously.
He said there were no fatalities. Earlier reports said two people had been killed.
The Ankara governor said the incident was under investigation.
Nick Rowlands, Reuters.
