(KTLA) — A day of peaceful protests in downtown Los Angeles took a turn late Saturday afternoon when law enforcement began ordering the thousands of demonstrators to disperse from the area surrounding the L.A. Federal Building complex.

Officers deployed flashbangs and tear gas, and KTLA’s Sky5 chopper captured the moment officers on foot and horseback moved into the large crowd. The L.A. Police Department said that some protesters were “becoming increasingly unruly” and were throwing rocks, bricks and bottles — despite the overall peaceful tenor of the day’s events.

The dispersal order covered Alameda Street between Aliso and Temple, and Los Angeles Street between Aliso and Temple. Additionally, the LAPD stated that all on- and off-ramps of the 101 Freeway would remain closed between Alameda Street and the 110 Freeway.

Saturday’s nationwide “No Kings” protests in Los Angeles and hundreds of locations across the U.S. coincided with Flag Day, the 250th birthday of the U.S. Army, and President Donald Trump’s 79th birthday.

Despite the LAPD’s claims of protesters throwing objects, “No Kings” protesters were advised by the “No Kings” organization to remain non-violent and respectful on Saturday. Several cities across the U.S. had protests that unfolded smoothly throughout the day. “No Kings” aim for the day was for it to be a “nationwide day of defiance” of the Trump administration’s policies on immigration, in addition to a protest of Pres. Trump’s Washington, D.C. parade, which some argue is more about stroking Trump’s ego on his birthday than celebrating the U.S. military.

Tens of thousands of demonstrators in the Los Angeles area took to the streets early Saturday and into the evening after weeks of action in the city’s streets, as protestors have been assembling to express disapproval of the mass ICE raids that have hit the Los Angeles and Southern California area specifically hard.