The bilateral relationship with North Korea dramatically collapsed in 1983 , after Pyongyang allegedly sent three agents to Yangon to assassinate South Korean President Chun Doo Hwan , who was making a state visit to Burma . Due to a last minute , unannounced change to his schedule Chun survived the massive bomb attack at the Martyrs ' Mausoleum , but 17 South Korean and four Burmese officials , including four Korean Cabinet ministers , were killed . Forty-six others were injured
the massive bomb attack
Rangoon bombing
Foreign relations of Myanmar