Auckland's Westpac Rescue helicopter has been called to a serious crash in Warkworth where one person is critically injured. Four others have moderate injuries, police say.
Police said the crash between a car and a campervan at the intersection of Sandspit Road and Sharp Road happened at 1.50pm.
The Northland Emegrency Services Trust helicopter has also been sent to the scene.
"Vehicle access to and from Snells Beach is impeded," police said in a statement.