BOSTON (CBS) – An overnight fire caused significant damage to an East Boston duplex.

Flames broke ou on White Place around 4 a.m., with the heavy fire in the rear of the building.

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Firefighters battle a blaze in East Boston. (Image Credit: Boston Fire Department)

No residents were in the side of the duplex where the fire broke out.

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The residents from the other side will be staying with friends.

Two adults and two children were displaced.

No one was injured in the fire.

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It is not known what caused the fire, which caused $100,000.