Police said the upset customers went into the restaurant and argued with the employee when they saw another customer with ice cream.
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According to the report, the employee told police one of the teens threatened to hit her before the women went behind the counter, hitting the worker and pulling her hair.
A restaurant manager called 911 after the upset customers left the area. Police said they exited in a red sedan, WKMG reported.
“The safety of our customers and employees is one of our top priorities,” McDonald’s said in a statement. “As this is an ongoing investigation, all inquiries are being directed to the Daytona Beach Police Department.”
Police said the employee was not injured in the fight.