ELMONT, N.Y. (CBSNewYork) — A 2-month-old boy is in serious condition and undergoing surgery after police said he was attacked by a dog on Long Island.

It happened Thursday morning on 117th Avenue in Elmont.

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Police said baby’s mother, who was carrying her son in an infant seat, knocked on a neighbor’s door and two pit bull mixes rushed out. That’s when police said one of dogs attacked the woman and the baby.

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The dog bit the woman on her leg and bit the baby on his face and head, according to police. A man who was working in the area rushed over to help the victims and was able to pull the dog away.

The two were taken to the hospital.

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An investigation is ongoing.