Personnel are working to clear a rural road outside of Feilding after a truck crashed, spilling bitumen on the road.
The surrounding area had to be evacuated while workers cooled the heated tanks to avoid the risk of an explosion while moving the overturned truck.
Emergency services were called to the scene on Halcombe Road at approximately 8.40am this morning.
Fire Service area commander Manawatu Rodger Calder said it was the third crash in three days on the "notorious" stretch of road.
"The truck has been coming down the hill towards Halcombe but it appears his back end has slightly run off the road. He has hit a culvert and then been flipped over."
He said the male driver of the truck, owned by Rex Bisman Ltd, sustained minor injuries, including a black eye and bump to the forehead. He was treated at the scene by ambulance staff.