State Highway 1 north of Auckland was closed after a crash that left one person critically injured.
A car and truck collided about midday at the intersection of State Highway 1 and Welch Dr, Warkworth.
A man in his 80s was seriously injured and was flown to Auckland City Hospital in a critical condition by the Auckland Westpac Rescue Helicopter.
The road was closed for some time while the scene was cleared. Motorists were asked to avoid the area and expect delays.
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It was re-open by about 4.30pm.