CHULA VISTA (CNS) - Officers arrested 20 minors for possessing alcohol during a rock concert in Chula Vista, the second such crackdown in a week.

The arrests were made during the Saturday night stop of Lana Del Rey's 2015 Endless Summer tour, featuring Courtney Love, at the Sleep Train Amphitheater, 2050 Entertainment Circle, according to a report from the Chula Vista Police Department.

Also, an adult was arrested for furnishing alcohol to a minor and a 15-year-old was arrested for possession of marijuana and destruction of evidence, according to the news statement.

Many of the minors, ranging from 15 to 20 years old, were arrested outside the amphitheater. All those that were arrested were released with a misdemeanor citation or released to their parent or guardian, with a pending court date, according to the statement.

Last weekend, a radio station's "Summer Kickoff" concert at the same place ended with one adult and 17 minors cited in an alcohol-related sting.

Police said minors who are convicted of possessing alcohol face a minimum $250 fine and 24 hours of community service. The penalty for furnishing alcohol to a minor is a minimum $1,000 fine and 24 hours of community service.