Two people have been seriously injured in a crash on State Highway 1 in Rangitikei.
Police were called to a two-car crash near Vinegar Hill Rd about 5.30pm on Sunday.
The cars ended up in a nearby paddock after colliding, a police spokeswoman said.
The Palmerston North Rescue Helicopter was called to fly two people with serious injuries to Palmerston North Hospital, while two others were treated for moderate and minor injuries.
The road was clear on Monday morning.