A northern fire communications spokesman said at least one person was trapped in one of the vehicles. Firefighters removed them using specialist equipment.
At 7.40am, another crash occurred on Great North Rd blocking left eastbound lanes just before the Rata St and Titirangi Rd intersection.
Waka Kotahi NZ Transport Agency advised motorists to expect delays.
Bus services going through the area might also experience disruption while the scene was cleared, the agency said.
A Hato Hone St John spokesperson said they responded to the incident with one ambulance and one rapid response unit.
“We have assessed and treated one patient in a moderate condition who was transported to Waitakere Hospital.”
GREAT NORTH RD, NEW LYNN - 7:40AM A crash is blocking the left eastbound lanes on Great North Rd just prior to the Rata St/Titirangi Rd intersection. Expect delays for all traffic, including bus services, through this area until cleared. ^TP pic.twitter.com/OziFnQOMmq
— Auckland Transport Travel Alerts (@AT_TravelAlerts) May 7, 2023
A crash on State Highway 18 Upper Harbour is also causing congestion during the Monday morning rush.
Waka Kotahi NZ Transport Agency alerted motorists to a crash blocking the right eastbound lane on the Upper Harbour bridge just before 7.30am.
The crash has since been cleared.
However, motorists are advised to allow for extra travel time as there remains “long delays” on the eastbound lanes on SH18 from Trig Rd to Upper Harbour Bridge.
SH18 UPPER HARBOUR MWY - 7:25AM A crash is blocking the right eastbound lane on Upper Harbour Bridge. Merge with care to pass and expect delays until cleared. ^TP pic.twitter.com/C4zf2mkcff
— Waka Kotahi NZTA Auckland & Northland (@WakaKotahiAkNth) May 7, 2023