S. KOREA WON'T INTERCEPT N. KOREAN SHIPMENTS TO IRAN

"... South Korea will not join a US-led scheme to stop and search suspicious North Korean ships... worried that intercepting a North Korean ship could trigger an armed clash... (still) South Korea's Deputy Foreign Minister Park In-kook told reporters that South Korea supported the "purpose and principles" of the PSI... a voluntary initiative that was launched in 2003 as a way of stopping the spread of weapons of mass destruction by stopping suspicious cargo ships at sea..
http://news.bbc.co.uk/2/hi/asia-pacific/6142488.stm

"... the US - along with ships from Bahrain, Australia, France, Italy and Britain - is conducting exercises simulating inspection of ships carrying illicit weapons-related materials. Iran must understand that the purpose is to intercept any nuclear- or missile-related shipments from North Korea..."
http://www.atimes.com/atimes/Middle_East/HK03Ak02.html