Preceding the start of swim season, several people have died in commercial pools recently.

A 7-year-old boy from the Philadelphia area was revived after being found in an Atlantic City, N.J., casino’s pool, but died later at the hospital from his injuries. No lifeguards were on duty.

In Florida, a four-year old girl fell into a local hotel pool after leaving the room of her guardian unattended. The child was transported to a hospital, where she died.

A five-year-old boy found unconscious in a Dallas-area hotel pool also passed away after being admitted to a hospital. He was discovered by another minor, who called 911. The incident happend during a party.

In Atlanta, a 38-year-old man pulled from a swimming pool died from what was ruled an accidental drowning, although homicide detectives were initially notified.