MILLBRAE (CBS SF) — One firefighter was treated at a hospital after being injured in a fire in Millbrae Friday that damaged five apartments, a battalion chief said.

Fire crews responded to 360 Vallejo Drive at about 10:30 a.m. on the report of spoke inside of the building, Acting Battalion Chief Dave Cresta said.

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No residents were injured. The firefighter was released from the hospital, he said.

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The cause of the blaze remains under investigation. A damage estimate has not been released.

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