It's not common for North Korea to acknowledge military-related setbacks, but observers say the disclosure of the failed ship launch suggests that Kim is serious about his naval advancement program.

North Korea’s newest warship was severely damaged during a launch ceremony Wednesday, with leader Kim Jong Un, who witnessed the accident, saying it brought shame to the nation’s prestige and vowing to punish those found responsible,

A 5,000-ton North Korean destroyer suffered a "serious accident" during a launch ceremony, state media reported Thursday, with leader Kim Jong Un calling it a "criminal act" and warning of consequences.