SH16 NORTHWESTERN MWY, WESTBOUND - CRASH - 6:30AM A crash is blocking lanes 3 and 4 westbound after Patiki Rd onramp. Please merge left to pass and expect delays.^TH pic.twitter.com/O67g7vJyeB
— Waka Kotahi NZTA Auckland & Northland (@WakaKotahiAkNth) March 17, 2021
It is not yet known whether anyone was injured in the collision.
Images on the NZTA site showed the two far-right lanes blocked off by emergency vehicles directing cars to the left.