Auckland commuters are being warned to expect heavy congestion in Onehunga, as fire crews continue to deal with a large fire

Neilson Street is closed westbound between Alfred Street and Galway Street.

The blaze at the Green Gorilla waste facility broke out about 1pm yesterday.

Dozens of firefighters worked late into night, to fight the blaze on the ground and from the air, as smoke billowed across the city.

A fire investigator is due at the scene this morning.