Two North Korean vessels have violated a disputed border known as the Northern Limit Line on separate occasions within an hour, causing two warning shots to be fired from South Korean patrol ships. Both boats retreated after the warnings were broadcast with no injuries sustained. The North has never recognised the border, since it was drawn up by the United Nations after the Korean War.
It is the first time that shots have been fired at the tense sea border since the mystery sinking of a South Korean warship on March 26. While investigations are still underway, suspicions have since been growing that a North Korean torpedo downed the warship.
Warning Shots Fired in Korean Border Navy Skirmish [BBC News, 16 May 2010]
S. Korea Fires Warning Shots at N. Korean Ships [AFP, 16 May 2010]
South Korea Fires Warning at North Korean Boats [The Telegraph, 16 May 2010]