Witnesses described a “bloodbath” following the horrific attack which has left two people seriously injured.
Screaming passengers ran for their lives after a man, believed to be in his 30s, started knifing people at random.
A witness said: “One of the victims was just offering his seat to an elderly lady when the attacker stabbed him in his chest. It was a bloodbath!”
Local media reported the suspect dropped a backpack before beginning the attack, which witnesses said began “smouldering”.
Officers in a police car which happened to be close to the bus sprang into action after seeing what happened.
Luebeck News has reported the man is in his 30s and from Iran.
More to follow…