Convicted swindler Bernard L. Madoff, who is serving a 150-year sentence in a federal prison in Butner, N.C., was moved to a low-security medical center at the prison last Friday, according to the Bureau of Prisons.
The Bureau declined to say why Mr. Madoff, 71, was moved there from a medium-security facility. But a person briefed on the matter said he was admitted to the medical facility after experiencing dizziness and high blood pressure and is remaining there for observation.