A 2-year-old boy who was found unresponsive in a backyard pool on Wednesday evening has died, according to police.
Police said the boy and his parents were visiting a home at 36 Glenstone Road in Waterbury.
The boy and other guests went swimming in the above-ground pool. When everyone else went inside, the boy did not, police said.
His parents found him unconscious in the pool around 6:30 p.m.
Firefighters performed CPR until an ambulance arrived and took him to St. Mary's Hospital, where he was listed as being in very critical condition, according to police.
Lifestar brought the boy to Connecticut Children's Medical Center, where he died, police said on Monday.
Police are calling this a terrible accident.
The little boy's death was ruled an accidental drowning.