Updated

The American Civil Liberties Union and an attorney say convicted national security leaker Chelsea Manning isn't receiving medical treatment for her gender identity condition as previously approved by Defense Secretary Chuck Hagel.

The ACLU and Manning's civilian attorney sent a letter Tuesday to the U.S. Department of Defense and the federal military prison in Fort Leavenworth, Kansas threatening to sue if Manning does not receive treatment for gender dysphoria, the sense of being a woman in a man's body.

Manning, who changed her name from Bradley after her conviction, is serving a 35-year sentence at Fort Leavenworth for giving WikiLeaks classified documents. She has asked for hormone therapy and to be able to live as a woman.

Messages seeking comment were left Tuesday for the U.S. Army and the prison.