Residents around Los Angeles may hear sounds associated with the field training exercise, including helicopters and weapon simulations, according to the statement.

"The local terrain and training facilities in Los Angeles provide the Army with unique locations and simulates urban environments the service members may encounter when deployed overseas," the Army told CBS.

Downtown Los Angeles residents were shocked Monday night when a fleet of Boeing A/MH-6M Little Bird and Sikorsky UH-60 Black Hawk helicopters swooped in around them.

A commercial parking lot across the street from the Regal Cinemas L.A. LIVE 14, at 1000 W Olympic Blvd, was the epicenter of some intense war simulations Tuesday night.Newchopper4 Bravo was overhead as Special Forces performed training exercises in the parking lot, then were extracted by helicopters before taking off over the 110 Freeway while police blocked nearby intersections.