Workers on Northern Rail have voted to go on strike in a row over jobs and safety.
Members of the Rail, Maritime and Transport union backed walkouts by 80% and other forms of industrial action by 90%.
The union said it is in dispute over a series of issues, including the removal of permanent posts and the creation of zero-hour jobs via a contract with a security company, cuts to booking offices and attacks on the role and responsibility of train guards.
The union said Northern Rail, which runs services which links Teesside with stations across the north of England, had also given no commitment that there will be no compulsory redundancies beyond the end of its current franchise in February 2016.
RMT general secretary Mick Cash said:
“RMT has made every effort to win assurances from Northern Rail over jobs, services and safety. However, the company continues to ride roughshod over our efforts.
“We therefore had no option but to ballot all staff for action to force the company to take these issues seriously and the members have now voted decisively for action. That mandate will now be considered by the union.”