An investigation into the four deaths is under way

The rail workers died after they were hit by a flatbed trailer which rolled down a slope at Tebay in February.

Three men were arrested, but one was later released without charge.

The Crown Prosecution Service will now consider the case after it reviews the results of an investigation into the accident by British Transport Police.

'Investigation complete'

A spokesman for British Transport Police said: "The police inquiry into the deaths of four rail workers at Tebay, Cumbria on Sunday 15 February has been concluded and a file is being submitted to the Crown Prosecution Service in respect of two of the three men arrested.

"The remaining two men, a 42-year-old from Anglesey and a 27-year-old from Maidstone, have had their bail extended to September when it is expected a decision on whether to prosecute will be made."

The men who died were Chris Waters, 53, of Morecambe, Lancashire, Colin Buckley, 49, of Carnforth, Lancashire, Darren Burgess, 30, of Carnforth, and Gary Tindall, 46, of Tebay.

They were working on maintenance for the West Coast main line near Tebay when the wagon came loose at a yard.