A reported two children and four adults were injured from fumes as two men set off tear gas in a "packed train" car in Germany. The second such attack in Hamburg, the other being at the airport last month. Two males were seen running from the train of about 50 people and are still at large.
And in Dusseldorf, the BBC is reporting that a man with an axe attacked people in a rail station, injuring 7, then jumped off a bridge while fleeing police. He is reported to be a "former Yugoslavian" with mental health issues.
Hours later, an 80-year-old man, also in Dusseldorf, was allegedly attacked by a man armed with a machete.
Of course all these could be coincidence, and could be completely unrelated to things like Muslim students in Wuppertal, Germany told not to "pray provocatively" -- but that's just a theory.