Get the latest news and updates from Dawn

Nine people remain in a critical condition following a train crash on Friday near Bedford, about 100 kilometres north of London, in which the driver of one of the services was killed.

Two passenger trains bound for London collided at around 5:15pm local time (9:15pm PKT) on Friday. The driver of one of the trains died at the scene.

Peter Knapp, a doctor who said on a social media site he was on board one of the trains, described a “sudden crash” with one carriage off the rails and said he had sustained minor injuries. Sky News cited him as telling the Press Association that some passengers were unable to speak and had injuries, including broken legs.

Providing an update on those injured in the crash on Saturday, British Transport Police Chief Constable Lucy D’Orsi said more than 80 people had received hospital treatment on Friday night.