Three people have been taken into custody after scaling above Wellington's urban motorway and calling for passenger rail to be reinstated.
Three protesters climbed the gantry on Monday morning and hung a large orange and black banner reading "restore passenger rail".
A police spokesperson confirmed the people have been taken into custody and charges are being considered.
The southbound lane that was temporarily closed has now reopened to traffic.
Waka Kotahi NZ Transport Agency warned traffic delays are expected to continue as the blocked lanes clear.