Fast trains between Didcot and Oxford, and Paddington and Oxford are cancelled. Stopping services are running every 30 minutes.
Flooding between Swindon0Bristol Parkway is causing delays of up to 15 minutes between London Paddington and Cardiff Central. Updates soon.
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Camden Council is evacuating five tower in the Chalcots estate in north London, to allow "urgent fire safety works" to take place.
Scotland Yard said it was taking action under public order laws over the marches "due to concerns of serious public disorder".
The Football Association says it is hoped that the match will raise around £1.25million for the victims.