A pedestrian hit by a car in West Auckland has died.

Police confirmed about 8.45pm that the person - who suffered critical injuries in the incident - had since died.

"The pedestrian suffered critical injuries in the collision...and died a short time ago in hospital,'' a police spokeswoman said.

Emergency crews were called to Te Atatu Rd about 6.40pm.

Auckland Transport said Te Atatu Rd was closed between Tirimoana Rd and Divich Ave due to a serious crash.

That part of the road remains closed.

Auckland Transport and the NZ Transport Agency asked motorists to avoid the area and consider using other routes.

TE ATATU ROAD - ROAD CLOSED - 6.55PM 17 JULY 
Te Atatu Rd has closed between Tirimoana Rd and Divich Ave due to a serious crash. Please avoid the area if possible or consider using an alternative route. The road will re-open once a crash investigation is complete. ^MF pic.twitter.com/UascjDCl2l

— Auckland Transport (@AklTransport) July 17, 2018

The road will reopen once a crash investigation is complete.

This comes as State Highway 1 near Hampton Downs in the north Waikato remains closed after a truck rolled about 2pm.

The highway remained closed in both directions while a crane was called in to help remove the truck.