The Bureau of Prisons says Bernard Madoff has been went from a North Carolina federal prison to a prison medical facility.

The bureau noted the change on its Web site Wednesday. A spokeswoman did not immediately return a phone message.

Madoff has been imprisoned since March, when he pleaded guilty to fraud charges and admitted cheating thousands of investors out of billions of dollars.

The 71-year-ancient Madoff was arrested a year ago after he confessed to his sons and later to the FBI that his private investment business was a fraud.

He is being treated at the Federal Medical Center, part of the Butner Federal Correctional Complex in Butner.

Butner is near the cities of Durham, Raleigh and Chapel Hill.