A 38-year-old woman and her dog have died after bring struck by a train Friday night.

The accident happened in the Don Valley between Thorncliffe Park and Millwood Road at around 8:30 p.m.

Toronto Fire Services said the woman was walking her dog along the tracks when she was hit by a southbound GO train.

She and the dog suffered fatal injuries and were pronounced dead on the scene.

The woman was said to have been with a relative at the time. 

Investigators are on the scene.