Photo: The Canadian Press

A commuter train crashed into a parked train at a suburban Philadelphia terminal early Tuesday morning, injuring dozens of passengers and the train's operator.

None of the 42 people hurt in the crash suffered life-threatening injuries, said Heather Redfern, a spokeswoman for the Southeastern Pennsylvania Transportation Authority. "Some were considered walking wounded," she said.

An inbound Norristown High Speed train crashed into an unoccupied train at the 69th Street Terminal in Upper Darby around 12:15 a.m. Tuesday. Redfern said hours later that the train operator had been treated at a hospital and released.

National Transportation Safety Board officials were at the scene and planned a briefing later in the day.

A passenger, Raymond Woodard, told WPVI-TV, that he was riding home from work when the train crashed.

"I heard the train going real fast ... like, super-fast," Woodard said. "And I looked up, and I saw that we're at 69th Street and said, 'Why are we going so fast?' And then we just hit the train. Boom! I fell out of my chair, glass from the window shattered, I hit my head. Everybody was on the floor."

Southeastern Pennsylvania Transportation Authority officials are investigating the cause.

Redfern said Norristown trains resumed normal operation but no express trains were running.