A major Auckland motorway link is blocked by an unfolding police incident.

The Eastbound lanes on Ellerslie-Panmure Highway are closed between the southbound State Highway 1 Ellerslie-Panmure Highway off-ramp and Main Highway.

Auckland Transport is warning people to expect delays, and Waka Kotahi New Zealand Transport Agency said people should find an alternative route if possible.

The Herald has contacted police for further details.