North Korean leader Kim Jong Un apologised on Friday for the shooting death of a South Korean man to prevent the spread of the novel coronavirus, the South's national security adviser said, as public and political outrage over the killing grew.

The apology came in a letter from the North's United Front Department, which handles cross-border ties, to South Korean President Moon Jae-in a day after South Korean officials said the North's soldiers killed the man, doused his body in fuel and set it on fire...