A 5-month-old girl found not breathing last week in a Westside mobile home has died, according to the Jacksonville Sheriff's Office.
Police were called to the home at 8985 Normandy Blvd. in Normandy Estates at about 2:30 p.m. Wednesday.
Investigators said the cause of death of Macii Sampson is undetermined.
Police at the scene said there were no obvious signs of foul play.
They said they interviewed witnesses and family members to try to determine what happened.
The girl was taken to Baptist Medical Center in life-threatening condition, but later died.
The Department of Children and Families was notified.