On Monday, June 13, 28-year-old Sandra Bland was arrested in Waller County, Texas, for allegedly assaulting a police officer after being pulled over for not signaling a lane change. Three days later, Bland was found dead in her jail cell. Late Wednesday night, video of the arrest of a woman believed to be Bland surfaced on the Internet, and it suggests Bland may have been a victim of police brutality.

"You just slammed my head into the ground," the woman in the video, believed to be Bland, tells the two police officers who appear hunched over her. "Do you not even care about that? I can’t even hear."

Moments later, she's heard telling a yet-to-be-identified bystander, who shot the video, "Thank you for recording. Thank you. For a traffic signal ... slammed me into the ground and everything."

Those close to Bland have been suspicious about the details surrounding her death. She had come from Chicago and was set to start a new job at her alma mater in Texas.

According to ABC 7, Waller County Sheriff Glenn Smith said "Bland 'had been combative on the side of the road'" and was charged with "assault on a public servant." Regarding her death in the Waller County Jail, the news outlet reports that officials say she died from "self-inflicted asphyxiation."

But a friend of Bland, Cheryl Nanton, is not convinced. "I do suspect there was foul play and I believe that we all are 100 percent in belief that she did not do harm to herself," she said.

"We're very suspicious and we're a very tight community and we're very upset that this is happening," LaVaughn Mosley, a friend of Bland, told the ABC 7 affiliate, "and it seems like there's nothing really being done about it."

Bland frequently spoke out against racial injustice toward Black people in America and posted videos about it on her Facebook with the hashtag #SandySpeaks.

MTV News will continue to update this story as more details unfold.