Shooting at California Costco Leaves One Dead, Several Injured

One person was killed and three others injured after a shooting at a California Costco store on Friday night.

The shooting took place at the N. McKinley Street Costco store in Corona, a city in Riverside County, at around 7:45 p.m local time.

The Corona Police Department said authorities responded to the scene in "just over one minute" and found four people lying on the floor of the wholesale retailer.

"One subject succumbed to their injuries at the scene and three other subjects, including an off duty officer from another agency, were transported to local hospitals in unknown conditions," Public Information Officer Tobias Kouroubacalis said in a news release.

A suspect has been taken into custody in connection with the shooting. His name has not yet been released by authorities.

The relationship between the victims and the suspected shooter was not immediately clear, although it appeared an argument broke out between the small group while inside the store, Lt. Jeff Edwards told CNN.

The Corona Police Department said they were not looking for any outstanding people involved in the shooting and indicated that more facts would be available soon.

"There is no apparent threat to our community from any outstanding persons," read a statement. "We will release more information as we work to confirm the facts."

Shoppers who attempted to evacuate from the store after hearing gunfire reported that the store's emergency doors wouldn't open. Newsweek has reached out to Costco for comment.

"It's not very fun when you're scared and you're running for your life and you're trying to open a door that says 'emergency' and they don't open," witness Rochelle Flores told KTLA. "Everybody was freaking out. People were falling over each other."

According to the local news station, bystanders eventually had to make their way to the main entrance at the front of the store.

On Saturday morning, the Corona police released a follow-up statement advising those who left behind personal items to retrieve them from the department.

"A search of Costco revealed numerous personal items belonging to shoppers who had to quickly leave the store," the statement said. "If you left an item such as a purse, cell phone or backpack with identifying information, it was secured by the Corona Police Department."

Video footage taken Friday evening showed a large police presence surrounding the store, including several ambulance vehicles. The surrounding area was blocked off to pedestrian traffic.

Police said they were withholding the name of the victim until officers have located and notified family members.

This is a developing story and it will be updated if more information becomes available.

A sign marks the location of a Costco store on December 12, 2018. Scott Olson/Getty Images