A retired Burbank police officer shot and killed an armed robber Friday at a McDonald's in Sunland, Los Angeles police said.

The shooting occurred around 10:47 a.m. when an armed man walked into the restaurant on Foothill Boulevard and attempted to rob the clerks at gunpoint, said Officer Greg Baek of the Los Angeles Police Department.

The retired Burbank officer then fatally shot the robber, Baek said.

Los Angeles police detectives were investigating.

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-- Richard Winton

Photo: A robbery suspect was shot and killed by a retired officer at a McDonalds's restaurant Friday. Credit: KTLA-TV