NORTHEAST FORSYTH — Two of the three young people who were unaccounted for after a Forsyth County Sheriff’s deputy broke up a party early Tuesday at Two Mile Creek Park have been found safe, authorities said, as the search continued for the third in Lake Lanier.

Forsyth County Fire Division Chief Jason Shivers declined to say where the two were located, only that they “turned up elsewhere.”

Searchers haven’t turned up any sign of the third person, whose family members said they hadn’t heard from him Tuesday.   

As of midafternoon, authorities were using boats with sonar to search from the surface. They began their efforts about 10 a.m.

The situation started to unfold about 3 a.m., Shivers said. A sheriff’s deputy patrolling the area encountered a group of at least 20 who were partying in a remote, unpaved section of the park, which is on a lake peninsula in northeast Forsyth.

The group, who authorities say ranged in age from teenagers to early 20s, scattered when the deputy arrived. The deputy was able to detain some of the party-goers, but heard others jump in the water.

A marine unit from the sheriff’s office, which happened to be in the area, conducted an initial search on — but not in — the water.

By mid-morning, at least three people’s whereabouts had not been determined. That was down from hours earlier, when five were believed to be missing.

According to Shivers, authorities had tried “multiple avenues” to contact the three, whose names have not been released.

“Our fear is they are in Lake Lanier,” he said.

It is also possible that the people emerged from the water and left the park on foot or by a vehicle parked nearby, according to Shivers.

No arrests have been made in connection with the party, which reportedly involved alcohol, as authorities continue to sort out the situation.