This BBC report http://www.bbc.co.uk/news/world-europe-39225847 requires no comment from me:
'Seven people have been injured in an axe attack at the main railway station in the western German city of Duesseldorf, police say.
The attack happened at about 21:00 local time (20:00 GMT) on Thursday.
One man has been arrested. The 36-year-old suspect from the former Yugoslavia suffers from psychological problems, Duesseldorf police said.
They said the assailant "attacked people at random". No fatalities have been reported.
One person was injured seriously, and the attacker was also badly injured after jumping from a bridge while trying to escape, police said.
He is being treated in a hospital.
The motive for the attack is unclear, and police are not describing it as being related to terrorism.
German federal police earlier tweeted a warning to the public not to engage in speculation.'