GWINNETT COUNTY, Ga. -- Police said a mix-up turned tragic when a mom left a baby in a hot car for hours. She later found him dead.

A Stone Mountain mother, Keshia Pouncie, said she was getting ready to leave for her sister-in-law’s house with her 4-year-old son. She said when she stepped away from her car momentarily, her husband placed their sleeping 7-month-old baby, Brock, in the backseat.

Pouncie said she had no idea Brock was in the car so it wasn’t until she got a phone call from her husband four hours later that she ran outside to her car and discovered her son in his car seat.

Brock was transported to Eastside Medical where he was pronounced dead.

“There hasn’t been any criminal charges filed yet. It’s just routine but investigators are just waiting for the medical examiner’s report to come in first just to verify the cause of death and everything. But as of right now, there are no charges,” said Cpl. Illana Spellman with the Gwinnett County Police Department.

The family’s neighbors said the Pouncie's are good parents. Keshia Pouncie said she hopes other parents will take away something from their tragedy.

Gwinnett County authorities said they are still investigating.