Motorists watched in horror as a bus travelled the wrong way down State Highway 1 north of Wellington.
The Metlink bus eventually came to a stop on the wrong side of Ngauranga Gorge.
Footage seen by the Herald shows the bus speeding south in the northbound lanes of Wellington's motorway near Tawa.
Waka Kotahi NZ Transport Agency said on Twitter the highway was closed near Ngauranga Gorge from the Hutt Rd on-ramp but has since cleared.