PHOTOS: Grenade Blasts Woman’s Arm at Dakota Access Pipeline [GRAPHIC]

The father of a woman who was injured Sunday during a confrontation with police near Dakota Access oil pipeline said Tuesday she may lose her arm. Wayne Wilansky said 21-year-old Sophia Wilansky was wounded in a concussion grenade blast that "blew the bone out of her arm."

"On November 21st as a direct result of the violent police response at Standing Rock towards unarmed people opposing the Dakota Access Pipeline, a 21 year old woman from New York City, Sophia Wilansky, was severely injured when a concussion grenade thrown by police hit her left arm and exploded," a statement from The Standing Rock Medic & Healing Council stated. "Sophia was heading to bring water to the unarmed people who were being attacked for several hours by Morton County Sheriff forces. The Morton County Sheriff’s Department has stated that she was injured by a purported propane explosion that the Sheriff’s Department claimed the unarmed people created. These statements are refuted by Sophia’s testimony, by several eye-witnesses who watched police intentionally throw concussion grenades at unarmed people, by the lack of charring of flesh at the wound site and by the grenade pieces that have been removed from her arm in surgery and will be saved for legal proceedings." Click through the gallery to see images of the injured woman and more. Please note the images are graphic in nature before proceeding. (Facebook/Standing-Rock-Rising)

Read more about the Dakota Access Pipeline protests in Spanish at