Police are investigating a Whanganui caravan fire which is being treated as suspicious.
The fire occurred in Hackett St in Whanganui East, with two fire crews called at 4.12am on Sunday.
A Fire and Emergency NZ (Fenz) spokesperson said the fire was well involved by the time crews arrived, and no one was inside.
Fenz was treating the fire as suspicious.
Police said on Monday they were treating the fire as unexplained and were making further inquiries to determine the circumstances.