(PORT HURON) -- Authorities say a 22-month old Port Huron girl drowned in a pool Wednesday. Port Huron Police were sent to the Palmer Court home around 7:20 p.m. According to officers, the child's mother was preparing dinner while the child was playing and at some point, she noticed the child was missing. The woman searched the home and found the little girl floating in the pool. EMS personnel performed CPR, but were unable to revive the child. The incident remains under investigation.