A rush hour collision in Germany between a passenger train and a construction engine has killed three people and injured a further 13 near the towns of Muelheim and Offenbach. The commuter train, travelling between nearby Frankfurt and Hanau, hit a construction vehicle in the early hours of Friday morning, which was still on the track following overnight maintenance work. It is believed that two of those killed were construction workers, while the passenger train's conductor is believed to be the other. The passenger train, which was carrying 35 passengers at the time, hit the engine and derailed but currently there is no confirmed cause for the how the trains came to collide. Of the 13 injured, the BBC reports that seven have been taken to a nearby hospital with serious injuries.