India, June 8 -- The powerful sister of North Korean leader Kim Jong Un on Sunday called US attempts to denuclearise North Korea an "anachronistic dream", saying the country would steadily expand its nuclear arsenal in the face of US-led threats.

The statement came a day before Chinese President Xi Jinping visits North Korea for talks with Kim Jong Un, in his first visit to the country in seven years. "The US assertion to backbite the status of the DPRK as a nuclear weapons state has no legally binding force and no one will be bound by the US unilateral rhetoric," said Kim's sister and senior official, Kim Yo Jong, using the abbreviation for North Korea's official name.

She dismissed as "false information" a US announcement that Preside...