Carlisle police said officers shot an "aggressive" pit bull four times and killed it Thursday after repeated attempts to subdue the dog by other means failed.

Police said the dog was running loose at Franklin and West North streets around 10:30 a.m. and had chased a child. An officer shot the dog when it charged him, and the wounded animal ran back to its nearby home in the 300 block of West North Street, police said. Officers tried to capture the dog to give it medical aid, but even a stun gun failed to subdue it, police said. The dog again charged and was shot, police said, and was shot twice more when it attacked an officer holding a capture noose. The dog then ran under a deck and died, police said.

No people were injured. The dog had escaped from its fenced yard through an unlocked gate, said police, who said they cited its owner, Josh Davis, 32, for not properly securing the dog.