Auckland's Southern Motorway is closed to northbound traffic between Drury and Papakura following a serious crash.
The crash is blocking the northbound lanes adjacent to the Papakura on-ramp.
The on-ramp is also closed.
New Zealand Transport Agency Waka Kotahi said motorists can detour via Great South Road, or consider delaying travel.
Police said the crash between a car and bus occurred around 10.50am.
One person was seriously injured.
Motorists should expect delays and avoid the area if possible.

Google Maps showed traffic moving very slowly from Papakura to Ramarama.



















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