PHILADELPHIA — Officials are investigating an accident involving two out-of-service commuter trains in suburban Philadelphia.

The Southeastern Pennsylvania Transportation Authority says the Market-Frankford Line trains were travelling near the 69th Street Transportation Center when the accident occurred Tuesday morning.

Cars involved in the collission of two out-of-service SEPTA trains outside Philadelphia (CBS Philly)

Television news footage shows several cars have derailed and one is tipped over at a 45-degree angle.

There is no word on injuries, but the trains were not carrying passengers.

SEPTA is operating shuttle buses between 69th Street Transportation Center and 63rd Street Station.

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