Unions at Irish Rail say industrial action is being "very seriously" considered because of ongoing concerns from train drivers about their pay and conditions.

The National Bus and Rail Union and SIPTU say they are considering balloting members for industrial action next month and that could result in strike action in the autumn.

The unions say in recent weeks drivers have been asked to implement new safety standards without any consultation.

NBRU General Secretary Dermot O'Leary said it is the latest in a number of new responsibilities that have been added to drivers’ job descriptions without any improvement in their pay or conditions.

He said his members have "had enough" and that if the union does not receive a positive response from management, it would ballot for industrial action next month.

He said this could result in strike action in the coming months. 

SIPTU assistant organiser Paul Cullen said his union was also "coming very close" to balloting its members on the issue.

He says drivers feel they have contributed considerably to productivity without any reward while other grades have been compensated.

Irish Rail says it Is currently discussing productivity with all employees and where cost savings can be identified the benefit will be shared between the company and its employees.