SANTA ANA ( — Police are investigating a mysterious death at a market in Santa Ana.

A woman was acting violently Wednesday at El Toro Carniceria-Meat Shop at 1340 West 1st Street when a security guard placed her in handcuffs, according to investigators.

READ MORE: COVID-19 Related Hospitalizations Continue To Drop In Los Angeles County

A witness said she was behaving erratically and began removing her clothes.

“She was jumping like crazy. And then she made a mess inside the liquor store. And that’s why the security guard had to do what he had to do, and grab her and handcuff her,” Joseph Castellan said.

READ MORE: Joshua Wells, 29, Arrested In Connection To Double Murder Of Long Beach Couple Over Alleged Parking Dispute

Moments later, she died.

Detectives have not released the identity of the woman.

MORE NEWS: SpaceX Inspiration4, With All-Civilian Crew, Splashed Down In Atlantic Ocean Saturday After Historic 3 Day Mission

A coroner will try to determine if she was under the influence of alcohol or drugs.