Motorists heading into Auckland city via State Highway 1 from the north and the south can expect heavy delays to hamper travel times.

The NZ Transport Agency warns there is heavy congestion for motorists on the Southern Motorway heading north and between Wellsford and Warkworth southbound.

Motorists are being advised to avoid the areas due to the high volume of traffic, otherwise, delays should be expected.

Elsewhere, heavy congestion has eased through Mana north of Wellington following high traffic levels along the coast earlier today.

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NZTA reports congestion northbound from Waikanae to Ōtaki remains, with queues still at Smithfield Rd.

Motorists in this area are being told to expect significant delays.