LYNCHBURG, Va. (AP) _ Federal authorities are investigating possible thefts at Lynchburg General Hospital’s pharmacy. U.S. Drug Enforcement Administration agents served a warrant at the pharmacy on Wednesday. Special agent in charge Gregory Cherundolo tells The News & Advance(http://bit.ly/1wOF8M7 ) that the warrant is related to an investigation of possible prescription drug thefts. He says thousands of pages of records for the last two years were copied. Cherundolo didn’t provide specifics about the investigation. But he says it includes thefts from ambulance drug boxes. No charges have been filed. Centra owns the hospital. Centra spokeswoman Diane Riley tells the newspaper that she wasn’t aware of the warrant.