WILLIAMSTOWN, N.J. (CBS) - A 1-year-old boy drowned Saturday afternoon after accidentally falling into his family’s in-ground swimming pool, according to authorities.

The incident happened at the victim’s grandmother’s home in the 100 block of Hemlock Drive in the Forest Hills section of Williamstown. Police say at about 11:15 a.m., a teenage uncle of the child spotted him floating in the pool through a rear window of the home before contacting authorities. When paramedics arrived, a friend of the family was already performing CPR on the child.

The baby, identified as Kanye Wright, was rushed to Kennedy University Hospital in Washington Township where he was pronounced dead at about 12:15 p.m.

The investigation revealed the grandmother asked the boy’s two teenage uncles, 14 and 16, to look after the baby while she showered. After conducting interviews with the teens, each believed the other was watching baby Kanye, according to authorities.

Officials say it seems as though Kanye left the house and made his way to the fenced pool where the gate was left open

Investigators say Kanye’s father, Waydale Wright, was in the front yard working on a car he planned to sell and the mother was at work at the time of the drowning.

An autopsy is scheduled for Sunday.