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.

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.

San Francisco police officers and sheriff’s deputies arrested nearly 90 people and seized more than a pound of narcotics during a Wednesday night enforcement operation at Jefferson Square Park, according to police.