(CNN) A Florida man is accused of killing his brother over an argument that involved a cheeseburger, authorities say.

Benjamin A. Middendorf, 25, shot his older brother during the dispute Thursday night, police said in a statement.

The fight started after the victim Nicholas Middendorf, their mother and a third man returned from a night of drinking, according to a police report

"I just shot my brother on accident," a man is heard yelling on a 911 call released by police in St. Cloud, Florida.

"We were in a fight and I grabbed a gun and I shot him. Oh God," Middendorf said, still screaming. "I'm so sorry."

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