Three clerks were ticketed in sales of alcoholic beverages to minors in an underage drinking initiative, Nassau County police said Tuesday.

The Second Precinct on Monday, with the assistance of an underage agent, conducted a Project 21 initiative, targeting businesses in sales of tobacco and alcohol to minors, police said.

The following clerks were given appearance tickets for prohibited sale of alcoholic beverage and unlawful dealing with a child, police said.

* Sukhjeet Singh, 26, of 8953 240th St., Bellerose, a clerk at the Valero Gas Station at 545 Conklin St., Farmingdale.

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* Wei Guo, 31, of 8808 Woodhaven Blvd., Woodhaven, a clerk at Newbridge Beer and Soda at 8 W. Village Green, Hicksville.

* David Jun, 52, of 50 Westwood Dr., Westbury, a clerk at Together Wine Outlet at 14 Jericho Tpke., Jericho.

Singh and Guo are scheduled to appear Jan. 13 at First District Court in Hempstead; Jun is scheduled to appear Jan. 17.