North Korea launched multiple ballistic missiles into the East Sea on Thursday, South Korea's military said, days after leader Kim Jong Un called for a nuclear weapons buildup.

North Korea fired multiple short-range ballistic missiles on Wednesday toward its east coast, South Korea and Japan said, days after Pyongyang unveiled a uranium enrichment facility and vowed to beef up its nuclear arsenal.

North Korea says leader Kim Jong Un has supervised successful tests of two types of missiles as he ordered officials to bolster up his country’s military capabilities to repel U.S.