Police are searching for a person outstanding in the water off Pukerewa Road following a report around 3:30pm.
Three men had been fishing in the area when one slipped on the rocks and fell into the water.
A helicopter was initially dispatched but was later stood down and replaced by a fixed wing aircraft to conduct aerial searches of the area.
One man was treated for injuries at the scene and another remains outstanding.
The search remains ongoing.
Issued by Police Media