A person is in a critical condition after a vehicle collided with a bus which then hit another bus in Wiri, South Auckland.
SH20B PUHINUI RD (TO/FROM AKL AIRPORT) - CRASH - 9:30AM
— NZTA Akld & Nthlnd (@NZTAAkl) April 3, 2018
A serious crash is blocking traffic in both directions to & from @AKL_Airport on SH20B (Puhinui Rd). Road closure may be required. Please avoid this route. ^TP pic.twitter.com/0you2rHrHA
The police serious crash unit is at the scene at the intersection of Puhinui Road and Price Road.
The vehicles were blocking the road and police had been encouraging people to avoid the area.
The Transport Agency said State Highway 20B was now fully open again, but to allow extra time for congestion to ease.