A deadly double shooting near Conyers prompted an hourslong SWAT standoff that left the alleged shooter dead and two deputies wounded, authorities said.

About 12:50 p.m. Thursday, deputies responded to a shooting in the 1800 block of Green Street, the Rockdale County Sheriff’s Office said in a news release. That area is just outside of the Conyers city limits.

Authorities learned an argument between the suspect and two men ended in gunfire, according to Channel 2 Action News. Robbie Daniel died from his injuries, the GBI said Friday in a separate release. The condition and the name of the other man was not provided.

Authorities tracked the suspect, identified by the GBI as 66-year-old Gerald Newton Allen, to his home on nearby Spring Street. He barricaded himself inside the residence, triggering the SWAT standoff, officials said.

Some residents were evacuated from their homes while deputies, Conyers police officers and a SWAT team tried to negotiate with Allen. Authorities entered the home just after 7:30 p.m. to try to take him into custody. Allen, however, shot at two deputies, GBI spokeswoman Natalie Ammons said.

“Deputies returned fire, fatally wounding Allen,” she said. “Numerous firearms were located inside the residence.”

The deputies, identified as Cpl. Michael Moon and Investigator Travis Coble, were taken to a hospital and later released, the sheriff’s office said. They are home recovering.

About 8 p.m., the GBI was requested to investigate the officer-involved shooting.

This is the 74th officer-involved shooting investigating the state agency has opened this year.

The Atlanta Journal-Constitution also tracks officer-involved shootings that don't involve the GBI, and those numbers sometimes differ from the GBI’s tally.

The sheriff’s office is investigating the deadly double shooting, the GBI said.