Engineers have worked through the night to restore rail services to one of London's busiest transport terminals after a fire caused nationwide disruption.

Trains were cancelled going in and out of Euston station from Wednesday afternoon after a blaze next to the track near South Hampstead triggered a power cut.

Despite work to restore services, London Overground services were still being affected on Thursday morning.

There will be no service on the line between the station and Harrow & Wealdstone until 1pm, Network Rail said.