In a rare public admission of failure, North Korean leader Kim Jong Un described the accident involving the 5,000-ton destroyer as a “criminal act.”

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,

Kim vowed to punish those responsible for the “catastrophic failure” after the naval vessel partially capsized during a ceremony attended by the leader.