Liverpool faces days of being cut off from the rest of the country after the city's main railway station was forced to close due to a wall collapse.
The collapse occurred at about 5.45pm on Tuesday between Edge Hill and Liverpool Lime Street - the city's main hub.
Remnants of the trackside wall - which had been loaded with concrete and cabins - blocked four train tracks.
No injuries have been reported.
National and local services have been severely hit and passengers have been warned not to try to travel by train on Merseyside.
Network Rail said the station, which handles 15 million passenger journeys a year, will be closed for several days.
A spokesman said: "No trains are running in or out of Liverpool Lime Street station after a section of trackside wall, loaded with concrete and cabins by a third party, collapsed, sending rubble across all four lines and taking overhead wires with it.
"Early indications suggest train services will not resume for several days while extensive clear-up and repairs take place to make the location safe."
The spokesman said it would not be possible to say when the station would reopen until an assessment was done on Wednesday.
Passengers are advised to check alternative routes at nationalrail.co.uk.
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