A Fire and Emergency New Zealand (Fenz) spokesperson said a full rescue response was sent to the scene.
Two trucks from Whanganui, one from Waverley and one from Pātea responded.
However, no one was trapped in the vehicle so the assistance of Fenz personnel was not required.
Police said traffic management personnel appeared to be on-site assisting.
Finn Williams is a multimedia journalist for the Whanganui Chronicle. He joined the Chronicle in early 2022 and regularly covers stories about business, events and emergencies. He also enjoys writing opinion columns on whatever interests him.