Kim Jong Un was reportedly enraged by the "sheer carelessness" leading to the botched launch of the regime's second destroyer.

North Korea has placed a cover over a destroyer that suffered damage in a botched launch attempt, with the vessel now appearing to be on its side and partially submerged, satellite imagery indicates.

Kim Jong Un's public condemnation of the bungled warship launch was a rare admission of failure from inside North Korea, but experts say it says a lot about its bigger plans.