December 14, 2014 3:40 PM EST
T housands of people took to the streets of New York City on Saturday to demonstrate against police violence in the wake of several deadly confrontations this year between officers and unarmed black citizens. This time-lapse video, made at the intersection of Sixth Avenue and 29th Street in Manhattan, shows demonstrators marching over a 90-minute period. Authorities estimated that more than 25,000 people marched in New York on Saturday, police told the New York Times , while thousands more held a similar protest in Washington, D.C.
See Thousands Across The Nation Protest Police Brutality Thousands of people gather at Washington Square to march through Manhattan to protest police violence on Dec. 13, 2014 in New York City. Cem Ozdel—Anadolu Agency/Getty Images Demonstrators chant at Freedom Plaza in Washington on Dec. 13, 2014. Jose Luis Magana—AP Thousands of protestors demonstrate against police brutality in New York City as part of the Millions March on Dec. 13, 2014. Andrew Hinderaker Thousands of protestors demonstrate against police brutality in New York City as part of the Millions March on Dec. 13, 2014. Andrew Hinderaker People march in the National March Against Police Violence on Dec. 13, 2014 in New York City. Andrew Burton—Getty Images Thousands take part in the "Justice for All" march and rally down Pennsylvania Avenue to the U.S. Capitol in Washington D.C. on Dec. 13, 2014. Saul Loeb—AFP/Getty Images People shout slogans against police as they take part in a march against police violence in New York City on Dec. 13, 2014. Eduardo Munoz—Reuters Young boys watch from a seat in a charter bus as demonstrators march along Michigan Avenue to protest police brutality on Dec. 13, 2014 in Chicago. Scott Olson—Getty Images Thousands of protestors demonstrate against police brutality in new York City on Dec. 13, 2014. John Minchillo—AP A police officer looks into the crowd, after he was hit on the leg with paint thrown by protesters during an evening demonstration against police violence in Oakland, Calif. on Dec. 13, 2014. Stephen Lam—Reuters Film director Spike Lee, and others, march on Pennsylvania Avenue toward Capitol Hill in Washington, on Dec. 13, 2014. Jose Luis Magana—AP Lesley McSpadden, mother of unarmed teenager Michael Brown, shot and killed in Ferguson, Mo., in August, helps lead the march on Dec. 13, 2014 in Washington D.C. Chip Somodevilla—Getty Images A man holds up a ''Jail Killer Cops' sign during a 'Millions March' demonstration in Oakland, Calif. on Dec. 13, 2014. Elijah Nouvelage—Getty Images People march in the National March Against Police Violence on Dec. 13, 2014 in New York City. Andrew Burton—Getty Images Thousands of protestors demonstrate against police brutality in New York City as part of the Millions March on Dec. 13, 2014. Andrew Hinderaker More Must-Reads from TIME Donald Trump Is TIME's 2024 Person of the Year Why We Chose Trump as Person of the Year Is Intermittent Fasting Good or Bad for You? The 100 Must-Read Books of 2024 The 20 Best Christmas TV Episodes Column: If Optimism Feels Ridiculous Now, Try Hope The Future of Climate Action Is Trade Policy Merle Bombardieri Is Helping People Make the Baby Decision