South Korea fires warning shots to repel North Korean vessel breaching sea boundary

South Korea’s military said it fired warning shots early Friday to drive away a North Korean merchant ship that briefly crossed the disputed western sea boundary between the rival neighbors. The ship crossed the Northern Limit Line near the South Korean border island of Baengnyeong around 5 a.m. but retreated after South Korea's military issued an audio warning and fired warning shots, South Korea’s Joint Chiefs of Staff said.