The DEA is investigating claims that NFL teams have mishandled prescription drugs.
Boston.com reports that agents showed up unannounced Sunday to examine the medical staffs of three away teams – San Francisco 49ers, Tampa Bay Buccaneers and the Seattle Seahawks.
The extent of the investigation remains a mystery, and no arrests were made Sunday.
‘‘DEA agents are currently interviewing NFL team doctors in several locations as part of an ongoing investigation into potential violations of the (Controlled Substances Act),’’ Payne said.
The investigation involves questions about NFL teams’ compliance with federal law when it comes to controlled substances. No teams were specifically targeted.
‘‘Our teams cooperated with the DEA today and we have no information to indicate that irregularities were found,’’ NFL spokesman Brian McCarthy said in an email.
The U.S. Attorney’s Office for the Southern District of New York is heading up the probe.
The investigation follows complaints from former NFL players who allege violations of federal drug laws.