All train services to and from Heathrow Airport have been halted following a trackside grass fire. National Rail has stated that "major disruption" is expected to continue until the end of Saturday, 5 September 2026.
The incident, which began shortly after 16:00 BST, has caused a failure of the electricity supply next to the track. This has resulted in all lines being blocked between London Paddington station and Heathrow's terminals, as well as Reading.
Great Western Railway has cancelled services to Reading, and no Elizabeth line or Heathrow Express services are running between Paddington and Heathrow on Saturday night. Passengers are advised by the airport to allow extra time for their journeys, noting that the Piccadilly line, which also serves the airport, is experiencing delays.