RACINE, Wis. -- Racine police said an officer responding to a report of unleashed dogs shot two pit bulls, killing one and wounding the other.Sgt. Mark Van Schyndel said police received the report Friday at about 5:45 p.m.He said that two pit bulls charged at the responding officer. Sgt. Van Schyndel said the officer had to shoot them to defend himself.Van Schyndel said one dog died and the other was hurt. Countryside Humane Society picked up both animals.The officer was not hurt.