HONOLULU (KHON2) — The Honolulu Fire Department said the house fire in Hauula on Sunday was intentionally set.

HFD investigators said the fire started in a crawl space under the home where someone was living.

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The cost of the damage to the home was $642,000 for the home and its contents.

The cost of the damage to the house next door was estimated to be $12,000.

The fire broke out around 3:45 a.m. Sunday, April 17.

Fire officials said the single-story home was fully involved when they arrived.

After a search, crews determined no one was in the home.

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The fire was put out in about an hour.