Source:
BBC South Korean President Lee Myung-bak has described as an "inhumane crime" the North's deadly shelling of a Southern island last Tuesday.
Mr Lee said he felt deep responsibility for failing to protect residents of Yeonpyeong island, where four South Koreans were killed.
Pyongyang says it was provoked by Seoul's military drill near Yeonpyeong.
Tension remains high in the area, where the US and South Korea are currently holding joint military exercises.
Read more:
http://www.bbc.co.uk/news/world-asia-pacific-11859913
Yes this is ongoing