By CBS3 Staff

CHESTER, Pa. (CBS) — A duplex caught fire in Delaware County overnight Tuesday. Flames were seen shooting out of a home at West 8th and Butler Streets in Chester.

Investigators say the residents of the unit that caught fire were in the process of moving and no one was inside.

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The fire also damaged a unit next door, but the woman living there made it out without any injuries.

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A firefighter is being treated for minor injuries.

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There is no word on the cause of the fire at this time.