Trains running into Manchester from Wigan, Newton-le-Willows and Liverpool will be disrupted for several hours because of a fire in Salford.
The cancellations are expected to cause chaos in the evening rush hour. Fire crews fear the building could collapse onto the line.
"Unfortunately because the building and fire is right next to the railway line we have asked for the trains to be stopped and overhead line equipment isolated.
"It could be several hours before we can be confident of what will happen to the building and how the fire will develop."
More top news
Mainly dry for Sunday. Rain risk into Monday and later on Tuesday
12 Clipper Round the World 70ft yachts begin their full circumnavigation from Liverpool today
Dry with clear spells tonight. Turning chilly in rural spots. Mainly dry on Sunday. Kerrie has the detail....