Two people have been seriously injured in a car crash on State Highway 3, near Whanganui.

A police spokesperson said they received a report of a single-vehicle collision on the highway at Kaitoke at 12.31pm on Thursday.

It appeared two people had been seriously injured in the crash.

Traffic management was on its way to the site.

Waka Kotahi New Zealand Transport Agency said the crash near the intersection with Concord Line had blocked the road.

Motorists should expect delays and follow the directions of emergency service personnel.
More to come.