SEOUL, South Korea — North Korea fired multiple short-range ballistic missiles toward the sea Wednesday in its second launch event in two days, South Korea’s military said, hours after a senior North Korean official released crude insults against Seoul’s hopes for warmer relations.South Korea’s joint chiefs of staff said several missiles lifted off from North Korea’s eastern coastal Wonsan area on Wednesday morning and flew about 150 miles each in a direction toward the North’s eastern waters.It said an additional North Korean ballistic missile fired later Wednesday traveled more than 435 miles off the North’s east coast. Japan’s Defense Ministry said it...