Survivors recalled the scenes of panic and devastation after two passenger trains collided near Bedford, north of London on Friday, killing a train driver and injuring over 80 people.
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Describing the moments after the crash, passenger Dr Pete Knapp told Press Association: "There was a moment of being flung into the chair in front, and then I saw smoke. People were crying, screaming, people were so scared and confused."
The collision occurred at around 5. 15pm local time between Bedford and Luton as both trains were travelling south towards London St Pancras station. Emergency services, including air ambulances and specialist rescue teams, rushed to the scene after several carriages derailed.