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 U.

North Korean leader Kim Jong Un has called for bolstering nuclear forces this year during a visit to a nuclear material production base and nuclear weapons institute, state media KCNA reported on Wednesday.

South Korea on Friday condemned the latest statement by North Korean leader Kim Jong-un to bolster nuclear shield during his visit to a uranium enrichment facility earlier this week, Yonhap news reported. South Korean Unification Ministry's deputy spokesman Kim In-ae said the international community will never accept Pyongyang's nuclear arsenal.