The NZ Transport Agency is advising motorists that due to a crash, State Highway 1 is closed in both directions between Woodcocks Road and Mckinney Road south of Warkworth.
Emergency services are at the scene.
Detours are in place but motorists are advised to avoid the area and use SH16 as an alternative route when travelling both north and south.
There are delays and the Transport Agency urges road users to allow more time for their journey.
You can find the latest information on road conditions at www.onthemove.govt.nz(external link), www.nzta.govt.nz/traffic(external link), or by calling 0800 4 HIGHWAYS (0800 44 44 49), as well as monitoring our facebook page www.facebook.com/nztaakl(external link) and twitter www.twitter.com/nztaakl(external link).