The dog had been donated to the town’s police force after the sheriff’s office discontinued its K-9 program, authorities say.

The 3-year-old daughter of a police chief in Colorado was killed in a dog attack involving a former K-9 officer, according to the Burlington Police Department.

BURLINGTON, Colo. — The 3-year-old daughter of Burlington Police Chief Nathan Hill died after she was attacked by a law enforcement K-9 at the family’s home, according to the Kit Carson Sheriff's Office.