THOMASTON, Maine — Knox County Sheriff’s Office deputies and Thomaston police spent much of Sunday morning chasing a pit bull that killed one animal, injured another and charged at a deputy.

Thomaston police Chief Kevin Haj said the incident began when the dog — which he said is a pit bull or pit bull mix — jumped a fence at its residence on Main Street in Thomaston.

Later in the morning, the dog attacked and killed a cat belonging to Knox County Deputy Paul Pinkham, Haj said. While officers searched for the dog, it attacked another dog, he said. The extent of that dog’s injuries was not immediately available.

Deputy John Hansen located the dog but the animal became aggressive and the officer fired his Taser. The Taser did not subdue the dog, however, and it ran off, the chief said.

Officers chased the dog from area between Booker and Beechwood streets. The owner also was involved in trying to catch the animal, Haj said. In that area are the schools in the town and a playground and ballfields.

The dog has been turned over to its owner and police ordered that the dog be quarantined and must be on a leash at all times when outside. The owner has recently built an enclosure for the dog which included being surrounded by a 4-foot high fence but the dog was able to jump over it, Haj said.

Police still are collecting witness statements but the chief said he expects the owner will be charged with having a dangerous dog.