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.

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.