By CBS Baltimore Staff

BETHESDA, Md. (WJZ) — A fire broke out at a new Bethesda home in its final stages of construction Monday causing $1.5 million in damages.

Montgomery County Fire And Rescue Services was called to a home in the 9100 block of Kittery Lane around 4:20 a.m. When firefighters arrived, they saw a portion of the home fully engulfed in flames. The fire caused a partial collapse of the home and there are concerns now about the integrity of the structure.

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The home did have sprinklers and no injuries were reported.

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Officially investigators have not yet determined the cause of the fire, but say one possibility is the spontaneous combustion of rags and brushes with organic floor stain.

MCFRS spokesman Pete Piringer tweeted that although the community was concerned the fire may have started due to a fireworks shows at the Bethesda Country Club Sunday night, investigators have ruled that out as a cause.

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CBS Baltimore Staff