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MEMPHIS, Tenn. — Fire investigators are trying to figure out what caused a large fire overnight that destroyed a Southwest Memphis home.

The fire broke out around 1:45 a.m. Monday in the 3100 block of Millwood Road — which is near West Brooks Road and Ford Road.

Firefighters initially thought someone was inside the house — but after an extensive search, they didn’t find anyone inside.

They say the woman who lived at the home wasn’t there when the fire started.

It took firefighters about an hour to put out the flames.