The incident happened at the Shop-N-Go convenience store at 13597 NC-39.
Deputies said the shooter was identified and is being questioned.
Authorities said there is no threat to the public.
No other details have been released.
In 2016, a 29-year-old clerk at Shop-N-Go 39 was killed and a second employee was also shot during an armed robbery.
Police arrested two men in connection with the shooting in the months after it took place.
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