The search for a man who reportedly drowned in Lake Lanier near Vanns Tavern Park resumed at 6 a.m. Sunday, June 30.

Corey Lamar Brown, 28, of Atlanta, was on a rented double-decker pontoon boat Friday, June 28, with a group of people jumping from the top and sliding down a slide, according to Sgt. Lee Brown with the Georgia Department of Natural Resources.

“They had rented a pontoon boat and they were out on the lake for the day swimming,” Brown said. “From what I understand, he was going after someone else and he started struggling and then went down.”

Mark McKinnon, public affairs officer for the Georgia DNR, said game wardens were called to the scene around 6:15 p.m. Friday. Two individuals were rescued by the game wardens, but one never resurfaced.

Brown said he believes the man knew how to swim and wasn’t sure if alcohol was a factor in the reported drowning.

The water being searched is anywhere between 12 feet to about 50 feet deep, Brown said.

“One thing making it difficult is not having an exact location,” Brown said. “We have a general location of where he was missing from.”

He said he’s also not sure how close to the boat the victim was when he went underwater.

“That’s one of the things we can't get clear from talking to the witnesses,” Brown said. “It’s been kind of varied on how close he was to the boat. He jumped off the boat to go help this other person, but I don’t know how close he was to the boat when he went missing.”

Sonar was used to search the area until about 1 a.m. Saturday and began again around 7 a.m. On Saturday afternoon, as boat traffic picked up, the dive team and sonar searches were called off.

“Our boats are making shore sweeps and using our on-board side-scan sonar,” Brown said. “We are still going through the area searching.”

Dive teams will resume searches at 6 a.m. Sunday.

The Hall County Sheriff’s Office and Hall County Fire Services dive teams are assisting in the search.

By Layne Saliba FCN regional staff, reporter Nick Watson contributed to this story.

This story will be updated.