State Highway 1 (SH1) has now opened after a three-vehicle crash blocked the northbound lane at Pukerua Bay on the Kāpiti Coast earlier this morning.
However NZTA Waka Kotahi advised motorists to continue to expect "significant delays" between Pukerua Bay and Plimmerton.
A police spokesperson said they were alerted to the crash at 10.50am, which had occured near the intersection with Te Motu Road, outside the shops.
It appeared three vehicles were involved in the crash and an investigation into the circumstances was underway.