SEOUL (Agencies) – North Korea slammed US President Donald Trump as “incurably mentally deranged” ahead of his first visit to Asia as head of state. The US president is due in Asia at the weekend and ahead of his arrival the North’s state-run KCNA news agency lashed out at “bellicose and irresponsible rhetoric” by the “master of invective”. “He absolutely needs medicine for curing his psychical disorder,” it said. The North’s sixth nuclear test in September saw the UN impose an eighth set of sanctions on the country. KCNA described the sanctions as “desperate efforts” and Mr Trump’s hostile rhetoric as “hysteric spasmodic symptoms”. Mr Trump, it said, “disclosed his true nature as a nuclear war maniac before the world and was diagnosed as ‘incurably mentally deranged’”. Mr Trump will not visit the DMZ on the border of North and South Korea.