North Korean leader Kim Jong Un, along with his daughter, walks away from an ICBM in this undated photo released by KCNA

North Korean leader Kim Jong Un, along with his daughter, walks away from an intercontinental ballistic missile (ICBM) in this undated photo released on Saturday by North Korea’s Korean Central News Agency (KCNA).

 KCNA via REUTERS

SEOUL — North Korean leader Kim Jong Un pledged to counter U.S. nuclear threats with nuclear weapons as he inspected a test of the country’s new intercontinental ballistic missile (ICBM), state media KCNA said on Saturday.

The isolated country tested the Hwasong-17 ICBM on Friday a day after warning of “fiercer military responses” to Washington beefing up its regional security presence, including nuclear assets.