11:36 a.m.: Law enforcement sources told the Los Angeles Times that the gunman was a TSA employee at LAX. The gunman was killed by authorities after he opened fire at LAX Friday. He allegedly shot ad killed a fellow TSA employee. 

11:20 a.m. The gunman who opened fire at Los Angeles International Airport on Friday morning, killing a TSA agent, is dead, law enforcement sources told The Times.

MAP: LAX shooting and response locations Video: LAX Shooting Photos: Shooting at LAX Map: Gunfire at LAX

No details about how he died were available. Law enforcement sources said investigators were trying to determine whether the gunman worked at LAX.

Los Angeles Police Department anti-terrorism officials were on the scene, but sources said they don't believe the suspect was tied to any known terrorist groups.

MORE: Eyewitness accounts of LAX shooting