A crash on Auckland’s Southern Motorway near Newmarket has gridlocked afternoon traffic, with queues stretching back almost 10km.

NZ Transport Agency Waka Kotahi (NZTA) said at 2pm a crash on State Highway 1 was blocking the left northbound lane under the Mountain Rd overbridge, before the Khyber Pass Rd off-ramp.

In an update at 2.20pm, NZTA said two lanes were blocked to allow vehicle recovery.

It followed this up at 2.40pm by saying the crash had been fully cleared.

According to Google Maps, northbound traffic had backed up almost 9km to Sylvia Park. Photo / Google Maps

According to Google Maps, northbound traffic had backed up almost 9km to Sylvia Park.

The Herald has sought comment from police on the crash.

- More to come