The high speed ICE sight was on a approach from Düsseldorf to Berlin when a dual behind carriages sprung from a marks shortly before it arrived in Dortmund executive station.
The collision left dual people injured, with one being brought to hospital, the Ruhr Nachrichten reports.
On Monday dusk a whole executive hire was sealed down, as investigators changed in to demeanour for clues as to a means of a crash. No initial matter has been given on what led to a derailment.
By Tuesday a stricken train, that was badly shop-worn by a accident, still lay semi-derailed in front of a station. Deutsche Bahn (DB) will move in cranes in a march of a day to try to set it behind on a tracks.
Serious repairs to a marks also means that informal sight trade along a line will be disrupted for several days, DB has confirmed.
With half of a executive hire still sealed on Tuesday, DB has supposing deputy stops in Gelsenkirchen and Herne, as good as a deputy train use between a executive hire and Herdecke.
Meanwhile, routes between Dortmund and Bochum, and Dortmund and Witten, have belligerent to a finish hindrance due to a accident.
The latest information on delays can be found on a Deutsche Bahn website.