Motorway mayhem: Northbound lane of Northern Motorway blocked in Auckland

The incident took place near Greville Rd, motorists are being warned of delays. Photo / Supplied

A northbound lane of Auckland's Northern Motorway is blocked after a multi-vehicle crash this afternoon.

The left lane is currently blocked. NZ Transport Agency is warning motorists through the Greville Rd off-ramp area to expect delays.

Queues are building just north of Wairau Valley, NZTA said, and motorists are asked to take extra care through the area.

Pictures sent to the Herald show at least three cars caught up in the crash.

Elsewhere, State Highway 3, near Waitomo, remains closed to trucks after a crash south of Golf Rd earlier today.

SH1 NORTHERN MWY, NORTHBOUND – CRASH –3:20PM
A #crash is currently BLOCKING the left northbound lane, near the Greville Rd Off-ramp. Please take extra care while passing and expect DELAYS. Queues are building just north of #Wairau Valley. ^CR pic.twitter.com/SkrnPbsw8L

— Waka Kotahi NZTA Auckland & Northland (@WakaKotahiAkNth) August 24, 2019