Authorities said the chase began in South Gate on Atlantic Boulevard at about 12:45 p.m. Three suspects, two men and a woman, were in a stolen white van with red rims driving erratically, according to officials.
Police said the van pulled over during the chase and let one of the men out who surrendered.
The woman and other male suspect pulled behind a Target store, jumped a fence and attempted to flee on foot while carrying bags. The man was spotted running down railroad tracks near the 2300 block of E. Artesia Boulevard.
The man appeared to put a black glove on one hand, then pull something out of a bag. That's when police shot and killed him.
"One of the individuals, the driver, he reached into a black backpack, put a black glove on and pulled something out and pointed it at the officers. That's when the officer-involved shooting happened," Lt. John Corina with the Los Angeles County Sheriff's Department said.
Police said the female suspect fled into a warehouse. Authorities evacuated the warehouse as they searched for the suspect. The woman attempted to hide, but was later found and taken into custody without incident, according to police.
"She continued to run down the (railroad) tracks and ran into a warehouse. (We) didn't know if she was armed or not so we evacuated the warehouse, had to search the warehouse, (we) found her hiding up high on some shelving," Corina explained.
Officials said a gun has not been found at the scene. No officers were injured during the incident.
The Los Angeles County Sheriff's Department is assisting the South Gate Police Department in its officer-involved shooting investigation.