The NZ Transport Agency website indicates the crash is near the intersection of SH1 and Whirokino Rd.
ROAD CLOSED: #SH1 Levin to Foxton due to a serious crash near the Whirokino Bridge. Please follow directions of emergency services. ^IF pic.twitter.com/ZNb6YJmvLg
— Waka Kotahi NZTA Central North Island (@WakaKotahiCNI) September 20, 2017
Traffic is being diverted via SH57. Northbound traffic turns off at SH57 to divert through Shannon then to Foxton (to get back on SH1) via Foxton-Shannon Road and reverse for southbound traffic.
One person is dead after the head-on crash. Photo / Ashleigh Collis
At the crash site, Senior Sergeant Sam Gilpin said a southbound and a northbound car had collided head-on.