Fire crews are attending a fire in Te Kohanga.
A controlled burn on a property in North Waikato, soon lost control.
Crews from Onewhero, Tuakau, Pukekohe and Papakura, as well as a helicopter are at the scene, along with a support vehicle, fighting the blaze.
It was not known when the fire lost control, but it has been burning for a few hours.
Rural areas in the Waikato district are currently in a restricted fire season.