A Riverhead man was among three store clerks busted for selling alcohol to a minor Friday night, according to Suffolk Police.
The bust was part of an undercover operation in the Shirley-Mastic area by the Seventh Precinct.
Ronald Castellon, 25, of Riverhead, was working at Ocean Gas on Montauk Highway in Shirley when police say he sold alcohol to an underage operative.
He was charged with first-degree unlawfully dealing with a child.
Police said the undercover operation covered 19 stores in Seventh Precinct jurisdiction.