CUMMING -- One person has been administered life-saving measures at a hospital after Forsyth County emergency personnel found him under water in Lake Lanier off the Shady Grove Campground beach, authorities said.

The 20-year-old man had been under water for about 40 minutes before he was found by the Forsyth County Fire Department’s dive team at 9 p.m. Monday, according to Robin Regan, a Forsyth Sheriff’s Office spokesman. He was not breathing.

He was taken to Northside Hospital-Forsyth in an attempt to resuscitate him, Regan said. He had not been pronounced dead because of the “fast recovery time.”

His family was in the process of being brought up to date. He is not from Forsyth County.

In addition, a 21-year-old man was treated for water inhalation, Regan said.

He apparently attempted to save the 20-year-old after hearing him yell that he was having difficulty swimming back to shore.

The men were part of a group of four that had reached a buoy just past the swimming line, not more than 100 feet from the beach, Regan said.

The Forsyth County Sheriff’s marine patrol unit had been patrolling the area, and the fire department responded within 15 minutes of the call about 8 p.m., though it was not immediately clear who notified 911.

Foul play is not suspected at this time, Regan said, though the investigation is ongoing.