TriMet spokeswoman Mary Fetsch said MAX Blue Line service will be delayed because of the collision. Shuttle buses will offer service between the Gateway Transit Center and East 148th Avenue. Fetsch said riders should expect delays for the next few hours.

Lt. Eric Schober of the Portland Transit Police said a man in his 50s was walking south in the crosswalk and appeared to stumble and hit the side of the train. Schober said authorities were unsure if the man was impaired.

The pedestrian's name has not yet been released.