A Whanganui house has been completely destroyed in an early morning fire which damaged neighbouring properties.
Police and fire investigators are on the scene working to determine the cause of the blaze which started in a vacant Kaikokopu Rd house just before 2am on Tuesday.
Whanganui fire senior station officer Craig Gardiner said the house, which had been on the market, was "fully involved and threatening both properties either side".
A neighbouring house - whose occupants used a garden hose to protect it from the fire - sustained "quite a bit of heat damage".
"And it's actually broken the windows on that house," Gardiner said.