South Korean prosecutors say they're investigating whether a former software company worker stole military secrets and handed them over to North Korea.
Prosecution spokesman Park Gyung-ho said Monday that the man allegedly stole the information from 2005 to 2010 while working for a company tasked with developing military and government computer programs.
Park declined to provide further details because the man is still under investigation.
South Korean media say the leaked material included a software program aimed at providing military officers with real-time information on battlefield situations.
Media reports say the man was convicted in 2002 for posting pro-North Korea materials on websites.