Officers from multiple law enforcement agencies descended Wednesday evening on San Francisco's Jefferson Square Park, where rampant drug use earned it the name "Zombie Park," arresting dozens of people.

San Francisco Police Department's operation led to nearly 90 arrests in Jefferson Square Park for drug-related activities.

A multi-agency law enforcement operation was carried out in the overnight hours into Thursday morning at a San Francisco park. San Francisco police say the bust at Jefferson Square Park is part of an ongoing strategy to crack down on open-air drug markets.