Baton Rouge police says more than nine years after a newborn baby girl was found dead in a garbage truck, officers have arrested the baby's mother.

Cpl. L'Jean McKneely Jr. says 28-year-old JoAnn King admitted to having and placing the baby in a garbage bin in December 2002. King was booked Thursday night with first-degree murder.

BFI garbage truck workers discovered the baby in a ripped garbage bag.

The coroner's office says the baby, who had probably been born the day before, died from a blow to the head.

Police say the baby's DNA was linked King's DNA. It's unclear when the mother's DNA was collected.