Auckland motorists are being warned of delays after a "serious" crash on the Auckland Harbour Bridge on Sunday morning, that injured four people.
In a statement, police said emergency services are responding to a serious crash involving two vehicles on the Harbour Bridge.
The crash was reported at around 8:45am and is blocking the northbound, far-left lane, police said.
Police said four people were injured in the crash.
"One person is being transported to hospital in a serious condition and three others have moderate injuries."
Police said traffic management is in place at the scene.
"Traffic is flowing north on the two centre lanes and Curran Street is blocked."
Waka Kotahi New Zealand Transport Agency said the northbound clip-on at State Highway 1 Auckland Harbour Bridge is now closed due to the crash.
Drivers are being told to avoid the area and consider using an alternate route.
