A homeowner in Georgia fatally shot three masked teens during an early morning attempted robbery, deputies said.

The youngsters — two brothers, ages 15 and 16, and another 15-year-old — were killed in an exchange of gunfire as they tried to rob the man and two other people in the victim’s front yard at 4 a.m. Monday in Conyers, a town of 15,000 about 25 miles outside Atlanta, according to the Rockdale County Sheriff’s Office.

One of the teen suspects had fired at the homeowner first, Deputy Lee Thomas told The Post.

The homeowner had not been charged as of Tuesday, but there’s still an “active and open” investigation into the incident, Thomas said.

One of the teens was pronounced dead at the scene, while the other two died at a hospital. Thomas declined to identify them, but relatives said two of the young people were 16-year-old Isaiah Reid and his 15-year-old brother, Jaime Hernandez.

“They was loving, they was brothers,” their aunt, LaShawn Thornton, told WXIA.

Thorton said she had no idea why the teens allegedly confronted the homeowner as he stood in his front yard with his mother and another person.

“I hope that someone can come forward and let us know what’s going on,” Thorton told the station. “Because this is, like, devastating to my family. There are three teens that are dead now. And we all loved them.”

The homeowner’s neighbors, meanwhile, told WSB-TV that the man, who works as a truck driver, is known to be extremely protective of his mother. Neither he nor the other two alleged robbery victims were injured.