Emergency vehicles, low-flying helicopters could be part of Capitol training exercise

U.S. Capitol Police will conduct a training exercise on Monday morning and warned that emergency vehicles and low-flying helicopters might be visible.

U.S. Capitol Police will conduct a training exercise on Monday morning and warned that emergency vehicles and low-flying helicopters might be visible. "Please do not be alarmed," Capitol Police posted on Twitter. Text messages were also sent to cellphones on Saturday to warn area residents about the upcoming training. The exercise comes about two weeks after National Guardsmen concluded a nearly five-month deployment to help secure the U.S. Capitol following the deadly insurrection on Jan. 6.