Police are investigating two suspicious fires in Taihape and Whanganui.
Fire and Emergency New Zealand responded to a house fire in Takahe St, Taihape, just before 1am on Thursday.
It took the Taihape crew 30 minutes to control the blaze.
A Fire and Emergency spokesman said the property had previously had a fire at it and the scene was handed over to police.
Police confirmed they were called to the suspicious fire and inquiries are ongoing.