A 65-year-old woman and a 15-year-old girl each sustained graze wounds when a Philadelphia police officer fired twice at a dog that attacked him Saturday night, police said.

The dog also was struck in a front paw.

According to police, the officer was talking to the woman on the 7800 block of Nixon Street about a fire about 9:15 when the dog charged at him and he fired his gun.

The woman was grazed in the left thigh; the girl, on the head, police said. Both reportedly declined medical treatment at the scene.

The pit bull-boxer mix was taken to a veterinarian for treatment, police said.

The officer also sustained knee injuries and was listed in stable condition at Chestnut Hill Hospital Sunday, police said. No other information was available.