From
the BBC» A passenger train struck the end of a piece of rail left on a track following engineering work, the Rail Accident Investigation Branch (RAIB▸ ) has said.
The Virgin Trains East Coast train, which had left Inverness bound for London, knocked the 130m (425ft) long rail clear.
The train did not derail and was not damaged in the incident on 25 February at Cradlehall, near Inverness.
Urgent safety advice has been issued by the RAIB to Network Rail.
ScotRail Alliance, which Network Rail Scotland is part of, said it carried out a full investigation after the incident and had taken "immediate steps to highlight the seriousness to all our employees".
The RAIB said there were three similar incidents in England between 2014 and 2017.
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Amazing cab picture from the
HST▸ that struck the rail on the top of the article