The wrecked remains of commuter train cars in Vienna.<br/> <br />On Monday, dozens of people were injured, including five seriously, after two trains collided head on.<br/> <br />The crash happened during morning rush hour in a Vienna suburb where trains going both directions use the same track.<br/> <br />This railway spokesperson said the crash was likely due to a technical problem, though human error had not been ruled out.<br/> <br />Emergency crews worked for hours to free trapped passengers and ferry the injured to hospital.<br/> <br />One of the train drivers was among the seriously injured.
