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, trend reports citing reuters .

The 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.

Attending the site with his daughter for the first time, Kim said threats from the United States and its allies pursing a hostile policy prompted his country to 'substantially accelerate the bolstering of its overwhelming nuclear deterrence.'

'Kim Jong Un solemnly declared that if the enemies continue to pose threats ... our party and government will resolutely react to nukes with nuclear weapons and to total confrontation with all-out confrontation,' the official KCNA news agency said.

The launch of the Hwasong-17 was part of the North's 'top-priority defence-building strategy' aimed at establishing 'the most powerful and absolute nuclear deterrence,' KCNA said, calling it 'the strongest strategic weapon in the world.'

The missile flew nearly 1,000 km (621 miles) for about 69 minutes and reached a maximum altitude of 6,041 km, KCNA said. Japanese Defence Minister Yasukazu Hamada said the weapon could travel as far as 15,000 km (9,320 miles), enough to reach the continental United States.

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