Gwinnett County police on Sunday announced two homicide investigations, including one shooting death at a home in Grayson that launched their SWAT team.

The Grayson incident on Roseberry Lane began as a domestic dispute between at least two people, police said, and one person was shot and killed. Police did not identify those involved.

Officers responded to the home, located off Cooper Road, shortly after noon and the SWAT team was activated some time later. They remained at the scene late into Sunday evening.

Less than an hour after they announced their first investigation, police said they were looking into a separate homicide on Brook Lea Cove in a neighborhood located off Lawrenceville Highway. A person was shot there at about 2:45 p.m., police said, and a man is deceased.

Several people responded to the police department’s Facebook post about the investigation in Grayson.

“It’s in our neighborhood!” one woman wrote. “Came home from church to see tons of cop cars, etc.”

Another woman responded: “I was wondering what all these sirens are about. Stay safe everyone and prayers to all.”