North Korea said on Tuesday its missile launches were “self-defence measures”, rejecting U.N. Security Council criticism of its weekend test, but the United States demanded international action against Pyongyang’s weapons programs. North Korea’s ballistic missile firing on Sunday was its first direct challenge to the international community since U.S. President Donald Trump took office on Jan. 20. The missile had a range of more than 2,000 kms , according to South Korea’s intelligence agency.