Low-flying helicopters, emergency vehicles part of Capitol training exercise

U.S. Capitol Police conducted a training exercise on Monday morning which included emergency vehicles and low-flying helicopters across the Washington skyline.

It's being called a routine training exercise. But the sight of helicopters landing on the U.S. Capitol grounds Monday -- almost five months to the day after the Jan. 6 assault -- was concerning enough that officials had told nearby residents beforehand, "Please do not be alarmed." And it comes amid a congressional debate over how to respond to a similar attack. Working alongside local partners, the U.S. Capitol Police exercise early Monday morning included emergency vehicles coming close to the Capitol and two helicopters flying low across the Washington skyline and then silhouetted against the Capitol dome.