Dispatchers first received a 911 call about a missing boy at Lake Mitchell west of Cadillac at 5:24 p.m. Monday.
The caller said the boy, Arend "Ari" Jack-Thomas Wagasky, was last seen around the northwest side of the lake.
Dispatchers received another 911 call at 5:36 p.m., saying the boy had been found in the lake. The caller said the boy had a pulse, but was not breathing, and that someone was performing CPR.
Paramedics took the child to Mercy Hospital Cadillac, where he died.
Investigators say the boy and his family were at a summer home in the Cadillac area when the incident happened.
- WZZM-TV and Cadillac News contributed to this report