Los Angeles (CNN) -- Additional police officers were patrolling Los Angeles International Airport and two other airports Wednesday after a former Transportation Security Administration employee was accused of making a false threat against LAX, authorities said. The beefed-up patrols were also a precaution on the anniversary of the September 11, 2001, terror attacks, police said. The two other airports are LA/Ontario International Airport in Ontario, California, and Van Nuys Airport in Los Angeles, police said. "In light of recent events at Los Angeles International Airport involving a disgruntled former airport worker and the 9/11 anniversary tragedy, Los Angeles Airport police has enhanced the deployment of uniformed officers in and around LAX, Ontario and Van Nuys airports.
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NEW: Ex-TSA employee leaves note: "09/11/2013 THERE WILL BE FIRE! FEAR! FEAR! FEAR!"
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NEW: He tells FBI the note refers to his plan to start street-preaching on that date
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Former TSA employee at LAX quits Tuesday after earlier being suspended
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More police are on patrol at LAX, LA/Ontario International and Van Nuys airports
He was suspended between July 21 and July 27 after he reportedly told a 15-year-old girl that she should "cover up," according to an @placeholder affidavit filed in court.