Crashes and a breakdown on Auckland's motorways have caused headaches for commuters heading into the city this morning.

One crash on the Southern Motorway after the Te Irirangi on-ramp temporarily closed two lanes while a vehicle was recovered and debris cleared from the area.

The New Zealand Transport Agency says the crash occurred around 8.20am and that congestion through to Manukau was now easing quickly.

Meanwhile, a truck breakdown that partially blocked the citybound on-ramp to the Southern Motorway at Takanini has been cleared.

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NZTA says that the truck has been towed from the area and asks that motorists allow for extra time for travel from Papakura to Takanini.

A crash on the Northwestern Motorway is blocking the left lane from Newton Rd heading towards the Port but is not currently causing delays.

Earlier today a crash on the Northwestern Motorway after Western Springs has resulted in congested traffic through the area.