The leader of the Rail, Maritime and Transport union (RMT), Bob Crow, has said that the rail dispute is not over and that he will ask his members to vote on the issue again.

Interviewed by Today presenter John Humphrys, Mr Crow insisted there was no vote rigging in the first ballot. And he added that current legislation had put "hoops and hurdles" in the way of his union by insisting that it provided details of the grades of all its members before a ballot would be deemed legal.

"Now with all due respect," he told the programme, "if you've 17,000 members on a Monday morning and you send over a matrix system of every single grade and location the very next day it changes - someone gets promoted, someone gets demoted, someone leaves - and it has to be one hundred percent accurate.

"That's got nothing to do with democracy."

And Mr Crow reiterated his view that the dispute was not about pay and conditions but over safety, especially for track workers on lines with high speed trains.

A judge yesterday granted an injunction suspending Tuesday's four-day walkout after Network Rail successfully argued that the RMT strike ballot was flawed.