North Korea has unveiled a new type of submarine-launched ballistic missile, described by state media as “the world’s most powerful weapon”.
Several of the missiles were displayed at a parade overseen by leader Kim Jong-un, reported state media.
The show of military strength comes days before the inauguration of Joe Biden as US president.
It also follows a rare political meeting where Mr Kim decried the US as his country’s “biggest enemy”.
Images released by North Korean state media showed at least four large black-and-white missiles being driven past flag-waving crowds.