TSA: One Officer Dead, ‘Multiple’ Shot By Gunman At LA Airport

A lone gunman walked into one of the nation's busiest airports Friday in Los Angeles and opened fire with an assault rifle, killing at least one Transportation Security Officer and wounding others.

That's according to police and TSA officials.

The attack left at least seven people needing medical treatment (including the shooter), officials said, and forced the evacuation of a terminal and delays of flights coming into and out of the airport. At least one of the wounded is listed in critical condition, a hospital officials said.

The gunman, officials said, was taken into custody after exchanging fire with airport police. LA Airport Police Chief Patrick Gannon said the assailant "pulled an assault rifle out of a bag and opened fire in the terminal."

Update at 4:00 p.m. ET. TSA: 'Multiple' Officers Shot, One Dead; Shooter Not TSA Worker:

This statement from a TSA official: "Earlier this morning, a shooting occurred at Terminal 3 at Los Angeles International Airport. Multiple Transportation Security Officers (TSOs) were shot, one fatally. Additional details will be addressed by the FBI and local law enforcement who are investigating the shooting."

Separately, NPR has been told by the LA Coroner's Office that a 40-year-old male is dead, but no further information was available.

A spokesman for the American Federation of Government Employees, the union that represents TSA workers, says: "We have received first-hand confirmation from a reliable source that the shooter was not a TSO."

Meanwhile, a UCLA Medical Center doctor told reporters that the hospital is treating three adult male patients from the airport shooting — one is in critical condition; two are listed as fair.