A 17-year-old drowned Sunday afternoon at Lake Guntersville State Park Beach, according to Marshall County Coroner Cody Nugent.
Nugent identified the teen as Albertville resident Martin Sebastian. He said the drowning appears to be accidental.
Guntersville Fire Department and the Guntersville Rescue Squad responded along with park rangers to the beach near the campground for what at the time was a possible drowning.
The 911 call went out shortly before 1 p.m. Sunday evening.
Nugent said the teenager got into a particularly deep part of the water when the drowning occurred.