Seoul, Feb. 9 -- North Korean leader Kim Jong-un, whom American President Donald Trump says he shares a good relationship with, has blamed the United States, Japan and South Korea for escalating tensions in the region, saying the allies' military cooperation has destabilized the security environment, as per state media of the nuclear-armed country.

In his speech during his visit to North Korea's Ministry of National Defence, Kim referred to a series of new plans for bolstering "all deterrences" and reaffirmed the country's "unshakable policy of more highly developing the nuclear forces," Yonhap reported citing the Korean Central News Agency (KCNA).

Further, the North Korean leader criticizdc the United States for "standing in the centre...