A truck hit and killed "several cows" on State Highway 1 at Maheno in North Otago this morning, causing long delays for motorists.
A police spokeswoman said the crash occurred at about 7.20am.
"Several" cows were killed in the collision, the spokeswoman said.
Traffic was badly affected and backed up in both directions, she said.
It was unknown if the driver of the truck was injured.
Police left the scene shortly before 10am and traffic was thought to be flowing smoothly again.
