LAS VEGAS, U.S. — Metro Police officers are shown outside a Wal-Mart after a shooting in Las Vegas June 8, 2014. Las Vegas police said on Sunday that a shooting incident involving officers resulted in injuries and urged people to stay away from the scene. The Las Vegas Metropolitan Police Department said in a tweet that the incident occurred near north Las Vegas, at an address close to a Wal-Mart store. Metro Police officers are shown outside a Wal-Mart after a shooting in Las Vegas June 8, 2014. Las Vegas police said on Sunday that a shooting incident involving officers resulted in injuries and urged people to stay away from the scene. The Las Vegas Metropolitan Police Department said in a tweet that the incident occurred near north Las Vegas, at an address close to a Wal-Mart store. An armed man and woman shouting about a "revolution" opened fire and killed two Las Vegas policemen who were eating lunch in a pizza parlor on Sunday, then fatally shot a civilian in a nearby Wal-Mart store before killing themselves, police said.