A Kentucky infant was killed while taking a nap when he was attacked by the family's dog.

Lexington police say 6-week-old Justin Mozer was sleeping in a bedroom on Jan. 18, when a Jack Russell Terrier attacked him.

"We arrived to find an infant suffering from injuries that we believe came from a dog attack," said Lt. John Gensheimer, of the Lexington Police Dept.

"The child was transported to the University of Kentucky Hospital and it has now become a death investigation."

Police say the boy' s mother was in another room at the time.

The infant was taken to the UK Hospital where he was pronounced dead.

An autopsy revealed the boy died of suffocation and blood loss.

The family also owns a Pit Bull.

It asked animal control to take away both dogs.

Neighbors say they're shocked by what happened.

No charges have been filed.