PHILADELPHIA (CBS) – A mother and son were bitten by a pit bull in the city’s Kensington neighborhood Thursday afternoon.

It happened at about 7 p.m. near Coral and Firth streets. Authorities say the dog bit the child in the leg and then bit the mother as she tried to help her son.

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Police also say the father hit the dog with a hammer to free the boy.

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Animal Control officers were called to the scene and took the dog away.

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Details on the boy’s condition or his mother’s have not yet been released.