There is major disruption to all West Coast Main Line railway services between Euston station and Watford Junction due to a fire in north London.
About 70 firefighters are tackling the blaze, which started at about 09:30 GMT at a commercial building on Regent’s Park Road in Chalk Farm, London Fire Brigade (LFB) said.
National Rail said to expect major delays until at least 15:00 and Avanti West Coast is advising passengers to use tickets with other operators, external. London Northwestern Railway trains are also suspended from Euston.
Services to cities including Birmingham, Manchester, Liverpool and Glasgow are affected. People with tickets for Friday can use them on Saturday instead at no extra cost.