Police believed they were locals but were still working to identify them.
Bunn said the section of State Highway 15 between Otaika and Maungatapere was closed overnight has since reopened.
NZ Transport Agency Waka Kotahi had earlier warned motorists to expect delays as detours were in place.
The latest fatal crash has taken Northland’s road toll to seven deaths this year - two more than this time last year.
Avneesh Vincent is the crime and emergency services reporter at the Advocate. He was previously at the Gisborne Herald as the arts and environment reporter and is passionate about covering stories that can make a difference. He joined NZME in July 2023.