Hours after U.S. President Donald Trump touched down in Japan on the first leg of his Asia tour on Sunday, North Korea warned him against making any "reckless remarks."

Trump told troops during an arrival ceremony at Yokota Air Base in western Tokyo that "no dictator" should ever underestimate his country.

In a commentary in the Rodong Sinmun, the newspaper widely regarded as an official source of Pyongyang's viewpoints, the North blasted Trump over what it said was his unpredictability.