The Rail Maritime and Transport workers union (RMT) has confirmed a further three days of strike action on Northern Rail.

It said strike action would go ahead on July 8,9 and 10 after a failure to resolve the long running dispute.

The RMT said the train operator was digging its heels in on the “crucial issue” of retaining a second “safety critical” member on its trains, while ploughing on with plans to introduce driver-only trains.

RMT general secretary Mick Cash said: “The public, who support RMT’s campaign for a guarantee of a guard on their trains, will be appalled that Arriva Rail North have failed yet again to offer any kind of progress whatsoever in the talks and have instead opted to try and bulldoze through their plans regardless.”

There has been a series of strikes on the Northern network by RMT members, although the last planned strike was postponed following the Manchester terror attacks.

Rail bosses have previously called for meaningful talks without any pre-conditions being imposed.