A train derailed in Pittsburgh Sunday afternoon with several train cars landing by tracks near a shopping complex.

The freight train derailed down towards the Station Square shopping complex around 1 p.m.

No hazardous materials were involved.

It's not clear what caused the train to go off the tracks.

The Port Authority in Pittsburgh has suspended all rail service.

A witness who was fishing with her family at the time heard the crash.

"Yes, we we're fishing down along the river," said Lexie Bubacz. "It sounded like a bunch of thunder. You just heard all the rubble."

No injuries have been reported.