North Korean leader Kim Jong Un has inspected a facility that produces nuclear material and called for bolstering the country’s nuclear capability, state media reported Wednesday, as it ramps up pressure on the United States following the inauguration of President Donald Trump.

Experts say Kim's public demand for more weapons-grade nuclear material is a calculated move to take denuclearisation off the table North Korean leader Kim Jong-un's latest public push to expand his country's nuclear arsenal is part of a calculated move to pressure Washington into accepting arms reduction talks instead of full denuclearisation,