Pvt. Chelsea Manning may now face additional criminal charges in relation to her attempted suicide on July 5.
According to the Washington Times, Manning may be in prison for longer than her original 35-year sentence.
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Manning, 28, is being investigated for charges of "resisting the force cell move team," "prohibited property" and "conduct which threatens" in connection with her July 5 suicide attempt, according to her attorneys from the American Civil Liberties Union.
If convicted, Manning risks punishment ranging from indefinite solitary confinement to an extra nine years behind bars, the ACLU said.
Manning received her initial sentence for leaking a multitude of sensitive military documents to Wikileaks.
Currently, Manning is being held at Fort Leavenworth at the United States Disciplinary Barracks, which is run by the Army.
The ACLU released a statement condemning the military's actions:
"It is deeply troubling that Chelsea is now being subjected to an investigation and possible punishment for her attempt to take her life. The government has long been aware of Chelsea’s distress associated with the denial of medical care related to her gender transition and yet delayed and denied the treatment recognized as necessary," ACLU attorney Chase Strangio said in a statement.
"It is unconscionable and we hope that the investigation is immediately ended and that she is given the health care that she needs to recover," Mr. Strangio said.
Manning used to be known as "Bradley" before undergoing hormone therapy while in prison.