Relations then broke down after Seoul suspended a joint economic project at the Kaesong Industrial complex in North Korea following a rocket launch and nuclear test by the North.
Mahusiano yalivunjika baada ya Seoul kusimamisha mradi wa pamoja wa kiuchumi katika jumba la Viwanda la Kaesong nchini Korea Kaskazini kufuatia kurusha roketi na majaribio ya nyuklia na Kaskazini.