Maritime Union members at the Ports of Auckland are taking more strike action.
The dispute with the port company is due to go to mediation on Friday.
The union has already issued notice for a partial five day strike starting on 15 February.
National president Gary Parsloe says the company will be told on Thursday afternoon that the union is taking full strike action for a week from 24 February.
He says the company needs to realize they are serious.
