As federal officials ask for more time to make a final decision on the Dakota Access Pipeline, police and protestors continue their standoff on government-owned property near the tribal lands of the Sioux nation in Standing Rock, North Dakota. Activists are concerned that the pipeline, which would run underneath the tribe's main source of water, could potentially contaminate the water.

Earlier this week, police used tear gas, rubber bullets, and water hoses on protestors in freezing temperatures—potentially life-threatening actions that tribe members are calling an "act of war." Protestor Sophia Wilansky claimed officers threw a grenade at her, while police believe she was hurt by an explosion caused by protesters. Doctors say they may have to amputate her arm as a result of the injury she sustained at the protest. Now, protestors, who declare themselves "water protectors," are calling for a week of action starting Nov. 25 and culminating with a global day of action on Dec. 1. Until then, here are some of the actions you can take to support protestors and say "no" to DAPL:

1) Donate directly.

Contributions to Sacred Stone Camp's GoFundMe campaign go towards water, food, blankets and other essentials necessary for the campers to live on the land while they're protesting.

2) Help pay their legal fees.

The Sioux tribe has filed a lawsuit contesting the pipeline, but they're up against energy companies with deep pockets and powerful investors. Make a contribution to their legal defense fund via Fundrazr.

3) Contact the elected officials who are sending police.

Call the state and county officials responsible for dispatching police to Standing Rock to let them know that the public will hold them accountable for their actions.

This content is imported from Instagram. You may be able to find the same content in another format, or you may be able to find more information, at their web site.

4) Send them something they need.

As temperatures continue to plummet, water protectors need snow gear and camping supplies, in addition to items like body cameras and pepper spray decontamination wipes. You can find everything on their Amazon Wish List.

5) Boycott CitiBank and TD Bank.

These financial institutions are among the most heavily invested in the pipeline, according to the New York Times. (Sacred Stone Camp recently tweeted that Norwegian Bank DNB is already considering divesting from the pipeline.)

This content is imported from Instagram. You may be able to find the same content in another format, or you may be able to find more information, at their web site.

6) Join a solidarity rally.

Cities around the country including New York, New Orleans, Kansas City and D.C. have recently hosted events. Check social media to find one near you.

7) Volunteer to help Sacred Stone Camp.

They're in need of people with legal and media skills. Get in touch via email (sacredstonecamp@ or by phone: 701-301-2238.

Follow Marie Claire on Facebook for the latest celeb news, beauty tips, fascinating reads, livestream video, and more.

This content is created and maintained by a third party, and imported onto this page to help users provide their email addresses. You may be able to find more information about this and similar content at piano.io