Four people were injured, one of them critically, in a shooting that followed a fight in Palmdale Monday afternoon, and two suspects were detained.
The call came in from the 37000 block of 25th Street East just after 2 p.m. with a report of a gunshot wound, according to a Los Angeles County Fire Department spokeswoman.
Several people were inside a business when another person came in and a "some kind of physical altercation" started, sheriff's Lt. Ken Wright said.
"That physical altercation escalated into shots being fired when one of the persons produced a gun. That person then fled," Wright said.
There may have been another person with the gunman, but that second person's involvement isn't clear, Wright said.
One patient had critical injuries and two had minor injuries, the Fire Department spokeswoman said.
The fourth patient was located after being "at large" and was treated in unknown condition, the fire spokeswoman said. Aerial video from Sky5 showed one person who appeared handcuffed being placed on a stretcher and loaded into an ambulance, aerial video showed.
Two patients were transported to local trauma center, and the two others to a local hospital, the Fire Department said on Twitter.
Authorities on scene said three people were shot and fourth was hurt after being hit on the head during the fight.
It's not immediately clear if the number of patients includes the shooter or shooters.
One person was taken into custody, but another person remained outstanding, sheriff's Sgt. Vincent Plair initially said. But the Sheriff's Department later said "two possible suspects" were detained and no one else was being sought.
Dozens of patrol cars responded, video from Sky5 showed. Deputies on foot appeared to search a nearby gated residential community.
Part of a strip mall was blocked off by patrol cars, including where a smoke shop and automotive repair business were located. Multiple sheriff's vehicles surrounded an am/pm convenience store at an adjacent Arco gas station.
Later, in the early evening, investigators appeared to focus on a drive-thru fast-food restaurant, Rio's Burger.
Both Plair and the Fire Department said the incident was not being considered an active-shooter situation.
The public was ordered to stay away from the area of 25th Street East and Avenue S.
KTLA's Jennifer Thang contributed to this article.