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Police operation (symbolic image)

Photo: Marijan Murat/dpa

A 19-year-old is said to have killed his parents and brother with a stabbing weapon in the Waldshut district of Baden-Württemberg. The man's sister was seriously injured on Tuesday evening, the police and public prosecutor's office said. 

The suspect was therefore arrested. The background to the bloody crime is still unclear.

Investigators did not say exactly where the attack took place. They spoke of an “eastern district community in the Waldshut district.” The parents died after the alleged attack at the scene of the crime, an apartment building. They were 58 and 61 years old. "The suspect's 34-year-old brother died in the hospital as a result of his injuries despite resuscitation measures," the investigators said.

Sister in the hospital

The 19-year-old's sister also suffered serious stab wounds. She was taken to a clinic in a rescue helicopter. Her injuries are not life-threatening.

The Waldshut-Tiengen public prosecutor's office wants to obtain an arrest warrant against the 19-year-old at the Waldshut-Tiengen district court on Wednesday because of strong suspicion of manslaughter in three cases and attempted manslaughter, the statement said. The investigations are therefore ongoing.

bbr/dpa