New York - Doctor’s who prescribed drugs to late actor Heath Ledger are being investigated by U.S. drug authorities, TMZ reported Thrusday.

The Docs under investigation reportedly provided the late actor with drugs such as Oxycontin and Vicodin.

“It’s an ongoing investigation,” a law enforcement source told The News Tuesday. “It’s not clear if there was any wrongdoing.”

The 28-year old star was found dead in his New York apartment on January 22nd due to an accidental overdose of prescription drugs.