Turkish capital Ankara rocked by explosion

There has been an explosion in the centre of the Turkish capital, Ankara, and reports say two people have been killed and others injured.

The cause of the blast remains unclear.

Thick smoke could be seen rising from the commercial area of Kizilay in central Ankara.

A fire started briefly, but was quickly contained by firefighters, reports say. Several vehicles were damaged and the glass in the windows of nearby buildings shattered, TV reports.

Television images showed several parked cars ablaze in front of a local state authority's offices.

Police have cordoned off the area. A bomb squad was also deployed to the location of the blast, reports say.

Nine people are said to have been taken to a city hospital with injuries.