This video is part of a series about Standing Rock, North Dakota — the contested pipeline and the people fighting its construction. Nexus Media will be highlighting voices from the protests unfolding along the Missouri River.

A law enforcement crackdown on protests against the Dakota Access Pipeline turned violent this weekend. Officers used tear gas, rubber bullets and fire hoses on men and women demonstrating in the freezing cold. Below, find exclusive footage of the struggle at Standing Rock.

This story is made available by Nexus Media, a syndicated newswire covering climate, energy, policy, art and culture.