A logging truck has tipped on to its side on State Highway 32 (Tihoi Rd) near Whakamaru.
A police media spokeswoman said the crash, between Paritaniwha and Arataki Rds, was reported about 6.40am.
"A truck is on its side, blocking part of the road, and there are logs on theroad," she said.
UPDATE 8:10AM This crash has #SH32 closed between Arataki Rd and Whakamaru, south of Whakamaru with a short detour in place. Allow extra time this morning: https://t.co/azhnY3i9RO ^TPhttps://t.co/rVhpkt1obV