Rail passengers have been told to expect severe disruption after services at Paddington station were suspended.
The problem was caused by damage to overhead electrical wires, according to operator Great Western Railway (GWR).
Trains from Reading and Heathrow Airport will also be delayed.
GWR first tweeted that train services could be delayed up to an hour or canceled due to a fault.
“Disruptions are expected until 8:00 p.m. Ticket acceptance is in place with SWR, Chiltern, TfL on the Elizabeth Line and London Underground via any reasonable route until further notice,” he said.
The rail company later confirmed that services would be affected for the rest of the day.
National Rail Inquiries shows all services to and from Paddington are ‘delayed’ or ‘cancelled’.
Paddington’s services were also suspended on Monday due to the same issue, causing chaos for people traveling to London for Queen Elizabeth’s state funeral.
Other railway lines were also disrupted this week due to damaged overhead cables.
Great Northern and Thameslink services will be restricted on routes including London King’s Cross to Brighton until the issue is resolved.