Emergency services are attending a serious crash on State Highway 1 at Piarere in Waikato.
The crash near Momona Rd was reported to police at about 8.30pm.
Initial indications are the incident involves a single vehicle, with other details yet to be confirmed.
A section of SH1 is closed as a result.
Motorists are asked to divert onto SH29 and SH27 (from Tirau) to avoid the affected section of the highway.