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CANNON BALL, N.D. (AP) – Dozens of people have been arrested as authorities in North Dakota cleared a protest camp where opponents of the Dakota Access oil pipeline had gathered for the better part of a year.

About 220 officers and 18 National Guardsmen methodically searched protester tents and other temporary homes for more than three hours on Thursday. Authorities say 46 people were taken into custody, including a group of military veterans who had to be carried out.

The arrests occurred a day after the Army Corps of Engineers ordered protesters to clear the camp by a 2 p.m. Wednesday deadline.

Native Americans who oppose the $3.8 billion pipeline set up camp last April near the Standing Rock Indian Reservation the shed light on their concerns about the project that would carry oil through the Dakotas and Iowa to a shipping point in Illinois.

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