A 7-year-old Fullerton boy died after he was discovered at the bottom of a pool in a La Habra Heights home late Monday night.

Levi Hardy was pronounced dead early Tuesday morning at St. Jude Medical Center in Fullerton, according to the Orange County Sheriff-Coroner’s Division.

Los Angeles County sheriff’s Homicide Detective Jon Bailey called the death a tragic accident. The homicide bureau is called in to investigate whenever a child dies in Los Angeles County.

Bailey said the boy, his siblings and his father visited friends in the 1200 block of Mayapan Road.

“The child couldn’t swim and was wearing a life jacket. Unfortunately, he took the life jacket off,” Bailey said.

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He said the boy’s siblings later spotted him lying at the bottom of the pool and pointed this out to their father. The father jumped in, pulled his son out and tried to resuscitate him, according to the detective.

Authorities received a call of a boy drowning on Mayapan Road around 11:30 p.m. Monday.

Art Marrujo, supervising dispatcher for the Los Angeles County Fire Department, said CPR was in progress as deputies also headed to the call. He said they also dispatch calls for the La Habra Heights Fire Department.

La Habra Heights Fire Capt. Edward Martin said the child was not breathing and not responsive when firefighters arrived. The boy was taken to a hospital.