Pyongyang says it may also prevent access into or out of a joint industrial complex in the North Korean city,Kaesong, potentially trapping hundreds of South Korean business managers there.
VOA: standard.2010.05.27
Until now, operations at the jointcomplex have been normal despite the rise in tensions.
Seoul has said the purpose of the complex was to develop a joint industrial park where South Korean companies could manufacture their products using North Korean labour.