As reported by Censor.NET referring to Russia's Interfax, this was announced by Istanbul Mayor Vasip Shaheen.
The blast killed one person and injured several others. Fire brigades and ambulances arrived at the scene.
The neighboring areas were blacked out. The Istanbul metro halted.
In turn, Doğan information agency says an improvised bomb went off at the station. It detonated, when a train pulled in the station. The windows in the cars were smashed, all people were quickly evacuated.
As reported by Haberturk, people had to walk on the tracks.
Later, a surveillance camera video of the explosion was released in the web.