Shots were fired from a moving car in the Kesselstadt district, according to German news site OP-Online. The shots occurred in Kurt-Schumacher-Platz, a central square in the Kesselstadt district. Emergency services including the police are on site and the area is cordoned off.
A helicopter is also said to be circling around the area.
The gunman is said to be on the run.
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Police rushed to the scene of a shooting in Hanau