Police and fire safety officers are investigating a suspicious blaze in an Invercargill home overnight.
A southern Fire Service spokesman said a fire broke out in the Ettrick St property at 8.10pm.
Three fire crews attended the blaze in the single-storey home.
No one was in the house at the time, he said.
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It was now being treated as arson and police and fire safety officers will return to the damaged home this morning to investigate further, he said.