Could North Korea develop a nuclear torpedo?

Might the Korean People's Navy develop a nuclear torpedo?

It may try, but a claim or prototype would say little about reliability, deployability, or the number of weapons North Korea could field.

North Korea is expected to investigate many nuclear delivery options, so work on a torpedo would be unsurprising. Announcing a system, assembling a demonstration article, deploying a reliable weapon, and fielding it in quantity are separate achievements. Limited money and a small pool of skilled personnel force projects to compete with one another. Reliability, schedule, and production scale therefore remain open questions even if development begins.