The United States Department of Justice says a man employed by a private company that was performing work for the National Security Agency has been arrested. In a statement, the department said 51-year-old Harold Thomas Martin III of Glen Burnie, Maryland, was being investigated for taking “highly classified” information. The statement said Martin was arrested in late August. It said he had a top secret national security clearance. The statement said six documents were taken that had information in them from intelligence reports. It said they were “produced by a government agency in 2014.” Investigators say the documents were classified Top Secret. This means that revealing what is in them “reasonably could be expected to cause exceptionally grave damage to the national security of the U.S.” The New York Times newspaper reported that Martin is suspected of stealing information from an NSA computer program.