Hundreds of demonstrators walked to Washington Monument in the US capitol to protest against the Dakota Access Pipeline on Sunday.

2.5 hours until the March and Rally for #StandingRock!! 950 Penn Ave NW. March at 12pm. Rally at 1pm! See ur beautiful faces soon! #NoDAPLpic.twitter.com/VDm5r6ph3X — Jordan Marie D. (@_NativeInDC) November 27, 2016

Social media users uploaded photos and videos, with some estimating that almost 1,000 protesters showed up for the event.

Dozens of indigenous people were seen wearing their traditional outfits, either marching or on the back of vehicles in Washington, DC.

Washington DC stands with Standing Rock #nodapl #waterdefenders A photo posted by Marie Clarke (@w3free) on Nov 27, 2016 at 10:36am PST

Hollywood actor Ezra Miller was also seen at the protest.

Me w/ Ezra Miller at the #NoDAPL peaceful protest in DC. He was standing in front of me and turned around and I was like "...holy shit" pic.twitter.com/PMcFgVMrBP — jessica ✨ (@xwithmywoes) November 27, 2016

The protest comes two days after the US Army Corps of Engineers said it will close the part of federal land anti-DAPL are camping on in North Dakota by December 5.

Last week, 26 protesters were injured and hospitalized during violent clashes at the site, with over 200 being treated for hypothermia after Morton County Sheriff’s Department struck people with water cannon in sub-zero temperatures.

READ MORE: Army Corps will close anti-DAPL protest camp at Standing Rock by Dec. 5