Police have released without charges a man who shot and killed a neighbor's dog while it was locked in a yard after attacking its owner's 4-year-old boy in Philadelphia's Juniata Park section.

The dog attacked the boy on 4600 block of Shelbourne Street about 2:40 p.m. Monday, police said. The boy, who sustained bites to his face, ear, shoulder, lower back and stomach, was reported in stable condition Tuesday at St. Christopher's Hospital for Children,

The child's mother told police she struggled to get the dog off the boy and locked the pet in her rear yard once she did. While out front with her son for the arrival of medics, she heard a bang, went to the rear yard and found the dog dead, police said.

East Division detectives questioned the man who shot the dog and released him without charges, police said.

Police did not release the names of any of those involved in the incident.