A large truck crashed onto its side has been causing major traffic delays north of Bombay in Auckland.
The NZ Transport Agency said the crash happened on State Highway 1 just north of the Bombay interchange.
While northbound lanes remained open, the agency warned motorists of delays.
A Newshub reporter at the scene said a Mainfreight truck was on its side causing major delays just north of the Bombay service stop, on northbund lanes.
A police spokesperson said officers were assisting emergency services at the scene.
"We were notified of the single vehicle crash, involving a truck, at around 10:29am.
"There were no reported injuries and traffic is now flowing freely," police said.