MATTAPAN (CBS) – Five firefighters were injured fighting a house fire in Mattapan.

Three suffered from heat exhaustion and the other two had injuries to their hands and shoulders.

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The fire broke out at a triple-decker house on Evelyn Street. Twenty people were forced to leave their homes, including five children.

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The cause of the fire is under investigation.

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All of the injuries to the firefighters are reported to be minor.