A crash and a breakdown on Auckland's motorways are causing delays for commuters trying to get home from work during rush hour.

A crash was blocking the left lane of southbound traffic of the Southern Motorway after Redoubt Rd, Manukau.

All lanes are clear now.

A break down on Spaghetti Junction on SH1 at 4.35pm was also causing delays for commuters.

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Traffic conditions:

Northern Motorway

Northbound: Moderate to heavy approaching Victoria Park Tunnel, due to an earlier breakdown- now clear.

Heavy between Northcote Rd and Upper Harbour Highway.

Traffic heavy approaching Upper Harbour Highway.

Citybound: Heavy heading to the Harbour bridge.

Debris in left lane to the southern link on the Victoria Park Flyover.

Southern Motorway

Southbound: Heavy between Newmarket and Greenlane again through Manukau, after an earlier crash.

Citybound: Heavy between Ellerslie and Greenlane.

Northwestern Motorway

Westbound: Heavy between Rosebank Rd and Te Atatu Rd again at Lincoln Rd.

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Citybound: Heavy on the Northern link.

Waterview Tunnel southbound: Free flowing.

Southwestern Motorway

Southbound: Heavy between Puhinui Rd and Plunket Ave, again heading to the Southern link.

Northbound: Moderate to heavy between Walmsley Rd and Neilson St.

Waterview Tunnel northbound: Free flowing.