Rail commuters travelling to and from London Paddington are suffering a second day of disruption because of damage to overhead electric wires.
Elizabeth line, Great Western Railway and Heathrow Express services are affected by the issue.
Cables between London Paddington and Slough in Berkshire were damaged at around noon on Monday, preventing trains from running on some lines.
This means two of the four lines serving London Paddington cannot be used by electric trains.
Long-distance services are operating normally but many services calling at stations between the capital and Reading are being cancelled and delayed while Network Rail works to fix the damage.
Disruption was expected until the end of the day.
London Paddington is the UK’s sixth busiest railway station.
Office of Rail and Road figures show it was used for an average of more than 65,000 journeys each day in the year to the end of March 2022.
