State Highway 2 near Mangatāwhiri is closed following a serious crash, police say.

Police were called to the crash involving two vehicles just after 11am.

“Initial indications are there are serious injuries,” a statement said.

“State Highway 2 is closed in both directions between Rawiri Rd and Kopuku Rd.”

A Fire and Emergency New Zealand spokesperson said six appliances from Maramarua, Mangatangi, Pōkeno and Papakura were at the crash scene.

A Hato Hone St John spokesperson said two ambulances, one helicopter and one rapid response vehicle were sent to the crash and one person was taken to Middlemore Hospital by ambulance in a moderate condition.

NZ Transport Agency said the highway was likely to remain closed for some time and detours were in place.