Engineering work is taking place between Purley and Gatwick Airport, closing some lines from 23:45 each night.
Engineering work is taking place overnight between Chester and Crewe, closing all lines and finishing on Friday morning.
Engineering work is taking place overnight between Rugby and Northampton, closing some lines.
The 18:52 Edinburgh to London Euston service, will be diverted, not calling at Northampton.
Engineering work is taking place between Southend Central and Shoeburyness, closing lines late on Monday to Thursday evenings.
Due to trespassers on the railway between Gloucester and Swindon trains between these stations may be cancelled.
Disruption is expected until approximately 14:30.
Engineering work is taking place between Wakefield and Leeds, closing some lines.
Engineering work is taking place between Stalybridge and Manchester Victoria closing some lines.
Engineering work is taking place overnight between Wilmslow and Manchester Piccadilly, closing some lines.
Engineering work is taking place between Alexandra Palace and Stevenage via Hertford North, closing all lines on Sunday morning.
Engineering work is taking place between Cambridge and Kings Lynn, closing all lines late on Sunday evening.