June 14, 2021 | 5:39pm | Updated June 14, 2021 | 6:03pm

A cashier was gunned down inside a Georgia supermarket Monday simply for asking a man to put on a mask — and a retired deputy who intervened was also shot, authorities said.

The afternoon horror happened at a Big Bear Supermarket in DeKalb, when the worker asked a man to mask up due to the COVID-19 pandemic, the Atlanta Journal-Constitution reported.

The man refused and got into an argument with the woman before pulling out a gun, hitting her with the weapon and shooting her in the head.

She later died, WSB-TV reported.

None of the individuals involved have been identified. 

The retired deputy, a part-time reservist with the DeKalb County Sheriff’s Office who was working security at the store, jumped in and returned fire, Dekalb sheriff’s office spokeswoman Cynthia Williams told the Journal-Constitution.

Police at the scene of the Big Bear supermarket where the shooting took place in DeKalb, Georgia on June 14, 2021.
Police at the scene of the Big Bear supermarket where the shooting took place in DeKalb, Georgia on June 14, 2021.
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The ex-deputy, a former 30-year member of the force, was hit twice in an exchange of gunfire, DeKalb County Sheriff Melody Maddox said during a press conference, the newspaper reported.

The former deputy was wearing a bullet-proof vest at the time and is in stable condition at Atlanta Medical Center, Maddox said.

The suspect was hit “multiple times” and was taken to Grady Memorial Hospital. His condition was not immediately released. 

 The Georgia Bureau of Investigation said on Twitter that it was asked to assist the sheriff’s office in the investigation.

“We’re headed to the scene to gather info,” the tweet said.

Police have not released further details.