Police have confirmed two people died following a serious two-vehicle collision on SH1, Kekerengu this morning. 

Two others were taken to hospital with moderate injuries. 

An NZTA spokeswoman said Highway 1 remains closed at the crash site, and no local road detours are available.

Drivers travelling on State Highway 1 – Kaikoura to Blenheim – are urged to delay their travel and avoid the area.

The only alternative route is inland via State Highway 7 Lewis Pass and State Highway 63 Wairau Valley. This has significantly longer travel times.

Road users with ferry connections in Picton must factor this closure into their travel plans