Massive traffic jam after Auckland SH1 truck crash

A motorcyclist has been hospitalised with serious injuries after a crash on the northbound lanes of the Southern Motorway in Mt Wellington, Auckland.

The crash involved a truck and a motorcycle, and occurred near the Panama Rd overbridge on Friday.

The crash blocked two lanes, and police warned it would cause considerable disruption for motorists. The crash has now been cleared.

"The serious crash on the Southern Motorway northbound near Mt Wellington has now been cleared and is no longer blocking any lanes," police say.

"The serious crash unit is investigating."