A political activist serving the longest federal prison sentence of any 2020 Black Lives Matter protester was transferred without warning to a detention facility thousands of miles away from their supporters and attorney.

Malik Muhammad’s transfer from the custody of the Oregon Department of Corrections came almost immediately on the heels of a misconduct report about organizing protest activity about their conditions from prison.

The report — which was obtained by The Intercept and flags conversations that are critical of Israel, the U.S., and the Oregon prison system — and subsequent transfer raise serious concerns about the state of censorship and free speech within the state’s carceral system.

In March, Muhammad vanished from every inmate tracking system without a trace, after missing a scheduled call with their lawyer. Days went by with no word. Inquiries from their attorney were met with vague runarounds from officials.

Muhammad, a veteran diagnosed with post-traumatic stress disorder, spent much of their time in Oregon in and out of solitary confinement. As a result, trouble communicating with Muhammad was not altogether unusual. As the days of silence became weeks, however, fear set in among Muhammad’s loved ones.