At least one explosive device detonated late Sunday evening in the city centre of Ansbach. Mayor Carda Seidel told journalists the explosion occurred near the entrance to a music festival.
The blast in the town Ansbach prompted the evacuation of more than 2,000 people from a nearby music festival, authorities said.
Earlier reports spoke of one man killed and 11 others injured in the blast that occurred around 10 pm (2000 GMT). Eyewitnesses reported that a number of paramedics were on the scene and that the old city was entirely cordoned off.
A person attempting to carry out a bombing in Ansbach, Germany, was killed in the blast, the Bavarian Interior Ministry says.