BUTNER, N.C. (AP) — The federal Bureau of Prisons says Bernard Madoff is being treated at a prison medical center for dizziness and hypertension.

Prisons spokeswoman Traci Billingsley says that Madoff is being treated at the Federal Medical Center, part of the Butner Federal Correctional Complex in Butner, N.C. He was moved there Friday.

Lawyer Ira Sorkin says Madoff has "had some dizzy spells and some high blood pressure."

Billingsley said Thursday that Madoff was not assaulted at the federal prison in Butner.

Duke University Medical Center earlier said Madoff had been treated there. But spokeswoman Debbe Geiger says the hospital had never had a patient by that name.