PITTSBURGH — A doctor for the Pittsburgh Steelers has been questioned by federal regulators about hormone purchases from a Florida pharmacy, but there is no proof he provided the substances to any players, a team official said Wednesday.

Dr. Richard Rydze has acknowledged that officials from the Food and Drug Administration questioned him about two months ago, but assured him he was not a target of a broader criminal investigation, Steelers President Art Rooney II said in a statement.

"There is no evidence that Dr. Rydze prescribed or provided any hormone treatments to any of our players. Dr. Rydze has assured me that this has never happened and will never happen," Rooney said.

"We will continue to monitor this situation to make sure that we can continue to feel confident in our medical staff in this area," he added.

The Times Union of Albany reported that Rydze was questioned about his 2006 purchase of about $150,000 in testosterone and human growth hormone. The purchase was made on Rydze's personal credit card.

There is no evidence Rydze violated any laws.

The University of Pittsburgh Medical Center, where Rydze is a physician, said Wednesday it had launched an investigation in Rydze's purchase.

"We have initiated an internal review and at this time we have no further factual information or comment," Susan Manko, a UPMC spokeswoman, said. "We of course are committed to the highest level of ethical behavior and integrity at UPMC."

At this time, the hospital is not releasing details about its investigation, Manko said.

Rydze is not interested in speaking to the media, Manko said. A secretary at his office refused to relay to him a message from The Associated Press.

Rydze's questioning in Pittsburgh was part of a larger investigation by the Albany County (N.Y.) District Attorney P. David Soares into an illicit steroid distribution network, according to the newspaper.

Two Orlando, Fla., pharmacies were raided Tuesday in connection with the investigation. Four company officials, including two pharmacists, were arrested on charges of enterprise corruption, criminal sale of a controlled substance, criminal diversion of prescription medications and insurance fraud.

While in Florida for the arrests on Tuesday, Soares declined to answer most questions about the case, which involves sealed indictments. He said his investigation was launched after an Albany doctor was arrested for allegedly trafficking narcotics online.