Federal Agents Seize Items From Camelot Cancer Care

There are new details on a cancer treatment center shut down by the Food and Drug Administration.

Camelot Cancer Care was reported to the Oklahoma State Attorney General's Office last summer.

Not much is known about the complaint to the attorney general's office.

A spokeswoman says they can't comment on what was done with the complaint.

4/23/2013 Related Story: FDA, FBI Raid Tulsa Cancer Clinic

On Tuesday, the Federal Bureau of Investigation and the U.S. Food and Drug Administration were spotted removing items from the treatment center.

Sources tell us the investigation stems from the facilities use of Laetrile, a natural treatment developed in the 1950s.

The FDA has not approved the use of Laetrile because it can lead to cyanide poisoning.

Doctors are not allowed to use medication that hasn't been approved by the FDA.

The chief of staff at the Cancer Treatment Centers of America in Tulsa said Laetrile is not on a list of recommended drugs by the National Comprehensive Cancer Network because of a lack of evidence that it works.

"Evidence-based medicine is very important, because, at least, we have research that's been done elsewhere or the experience of others that can guide therapy that can be most effective for that patient," CTCA's Dr. Daniel Nader said.

One person has been arrested in connection with the case.

Michael McDonnough is accused of sneaking into the facility on Tuesday and trying to remove a computer.

He was chased by federal agents and a 9mm pistol was found in his backpack, authorities said.