Alexandria police arrested seven store clerks for selling alcohol to minors, police announced Thursday. Officers made the arrests in a nighttime 18-store sting, sending minors into convenience, drug and grocery stores to buy alcohol.

Some of the seven clerks arrested looked at the minors’ identification cards before selling them booze; others didn’t, police spokesman Jody Donaldson said. When asked, the minors displayed their real Virginia drivers’ licenses — not fake IDs.