A car fire is caused delays on an Auckland motorway during peak traffic in the second highway blaze in the city today.

SH16 NORTHWESTERN MWY - INCIDENT - 5.10PM

A car fire (clear of lanes) is causing delays in both directions near the Rosebank on/off ramps due to rubbernecking. Avoid the area if possible or be prepared for delays. MF pic.twitter.com/DqgFNQZSkR — NZTA Akld & Nthlnd (@NZTAAkl) April 3, 2019

The latest fire was on the Northwestern Motorway, near the Rosebank off-ramp.

Fire and Emergency said nobody was injured.

One lane was blocked as emergency services dealt with the fire.

NZTA also warned that rubbernecking motorists were causing delays, and drivers were advised to avoid the area if possible.

The car has now been cleared and all lanes are open.

Something is burning on the north western motorway heading city wards - services on the way pic.twitter.com/P2xTXFmOcS — Richard Pamatatau (@RPamatatau) April 3, 2019

Earlier this afternoon, a car fire blocked part of the Greenlane northbound off-ramp on the city's Southern Motorway.

NZTA camera footage taken shortly after midday showed the vehicle fully ablaze, halfway up the on-ramp.

SH1 SOUTHERN MWY - CAR FIRE - 12:20PM

A car fire is currently affecting the Greenlane northbound off-ramp. Please avoid this route as emergency services will need to block the off-ramp to attend. Use alternative exit. ^TP pic.twitter.com/MmPu0MiAVu — NZTA Akld & Nthlnd (@NZTAAkl) April 2, 2019

The vehicle was cleared away after 45 minutes and all lanes are now open.