A motorcyclist has died after colliding with a car south of Auckland this morning.
The crash happened on Onehunga Harbour Rd, near the off-ramp of the Southwestern Motorway just before 7am.
The man was in a critical condition after the crash but has since died.
Extensive delays are expected as the road closures include part of the motorway off-ramp, Nielsen Street and Onehunga Mall.
Motorists are advised to avoid the area if possible.
NZTA is advising motorists to use the Queenstown Rd off-ramp or an alternative route.
#Crash in Onehunga causing delays on Neilson St off-ramp. Queues forming along Mangere Bridge on Sth-Wstn Mwy. Use alternate exit ^TP— NZTA Akld & Nthlnd (@NZTAAkl) August 22, 2016
Neilson St off-ramp (northbound) from Sth-Wstn Mwy is to CLOSE due to serious #crash in Onehunga. Avoid area. Use alternate exit ^TP— NZTA Akld & Nthlnd (@NZTAAkl) August 22, 2016
A Fire Service spokesman said the Fire Service had no involvement in the emergency response.
The serious crash unit will investigate the crash.