Security guard shoots, kills woman at Hollywood Ralphs store

A security guard working at a Hollywood Ralph's supermarket shot a woman after he was struck with a fire extinguisher, according to police. 

Officers said the woman armed herself with a fire extinguisher and then a screwdriver moments before the security guard opened fire. 

The shooting happened a little before 3 p.m. in the 5400 block of Hollywood Boulevard near the entrance of the local grocery store after the woman "made an aggressive move toward the security guard." 

Investigators said the guard called 911 and tried to resuscitate her until first responders arrived. When they did, they provided first aid to the woman until Los Angeles Fire Department took her to the hospital.

According to Los Angeles Police Department, the woman was rushed to a hospital in an unknown condition but underwent surgery when she arrived. 

She died at the hospital.

It's unclear what led the woman to strike the security guard with the fire extinguisher. He was neither arrested nor detained by officers. LAPD claims he is cooperating with investigators asking questions about the incident.