What happened during the accident? [originaltext] An underground train derai

An underground train derailed at the station in central Paris yesterday, injuring people and just missing another underground train standing on the opposite track. French emergency services say the trains were traveling at 35 kilometres per hour when it derailed at the entrance of the station. No one was killed and no one was trapped in the train during the accident. Ambulances rushed to the scene and doctors began treating casualties in the station and a nearby cafe. Some people have broken limbs and others have suffered bruising. None was in a critical condition. As yet it was not known why the train came off the tracks.