May 29 (UPI) -- An early morning fire in an Amtrak contractor maintenance vehicle has injured five people and suspended all Penn Station service between New York City and New Jersey for commuters. The fire broke out in the Hudson River tunnel at about 1:25 a.m. EDT, Amtrak said. The New York Fire Department said it was dispatched to the scene on 31st Street, between Seventh and Eighth avenues. There were 46 fire trucks and 141 personnel sent to the scene. Five rail workers were evaluated at the