A station attendant told German newspaper, Bild, that a man had attacked people after jumping off a train.
They said: "We were standing on the track, waiting for the train. The train came, and suddenly someone jumped out with an ax, hit the people.
"There was blood everywhere. I have experienced a lot, but I have never experienced it."
Earlier this evening a terrified passenger claimed on Twitter that a 'crazy man' attacked people in the station.
Bruno Macedo tweeted: 'Man with axe chased by police in Dusseldorf. Station closed. I am in the train things look bad #police #terror.'
Macedo added: "Stay away from #Dusseldorf train station crazy man with #axe on the lose .. :("
He later posted: 'Everyone is calm in the train. Tense but calm....#dusseldorf #breaking #terror
"Train is not stopping in #Dusseldorf #police closed the station . #terror #germany"