The Latest on the attack at a supermarket in Hamburg (all times local):

5:15 p.m.

German police say that four people have been wounded in a stabbing attack at a Hamburg supermarket in addition to the person who died in the attack.

Police say the assailant attacked the first victim in the supermarket on Friday afternoon and that person died at the scene. The attacker wounded another four people with his knife as he fled. Witnesses followed him and alerted police, who arrested him.

Police say they don't have any information yet on the man's motive.

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5:10 p.m.

German police says there was definitely only one attacker with a knife who went into a supermarket in Hamburg and stabbed several people.

German police say one person has died in the Friday afternoon attack and several people have suffered stab wounds. They said on Twitter that they don't have information on the assailant's motive or on the exact number of victims.

They added that "initial reports about robbery as a possible motive so far have not been confirmed."

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4:35 p.m.

German police say one person has died after a man with a knife attacked several people at a supermarket in Hamburg.

The assailant entered the supermarket in the Barmbek district on Friday afternoon and stabbed customers before fleeing, police said. Witnesses followed him and alerted police, who arrested him near the scene.

Police said several people suffered stab wounds and one of the victims was fatally wounded.