(NBC News) The last four people continuing an armed occupation of an Oregon federal wildlife refuge have been indicted by a federal grand jury.
Sixteen people in all were charged with one count of conspiracy to impede officers of the United States, including the group's leaders, Ammon Bundy and his brother Ryan.
The Bundys were arrested on Jan. 26. During those arrests, one occupier was shot dead. Eleven of the 16 indicted by the grand jury had previously been arrested on federal charges related to the occupation.
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