A Jacksonville man has been charged with drowning a woman and her infant daughter.

Police say they charged 18-year-old Andrew Gomez Sunday for killing his friend, 18-year-old Tiffany Sue Cecconi, and her daughter, 18-month-old Kaylani.

Authorities say he was standing naked in the pool at a Jacksonville apartment complex Wednesday when officers arrived.

The mother was already dead at the bottom of the pool and the daughter was pronounced dead later at the hospital.

Gomez was being held without bail.