One person has died following a house fire in Thames overnight.

Police and FENZ were called to the property on Paeroa Kopu Road about 12.30am.

"Sadly, one person was found dead at the scene," says a police spokesperson.

"A scene guard is in place.

"The death will be referred to the Coroner, and enquiries will be made into the circumstances of the fire."

NZTA reports that Paeroa Kopu Road is closed and a detour is in place.

For Southbound traffic detour via Hauraki Road then SH2. For Northbound traffic detour via SH2 then Hauraki Road