South Korea Fires Warning Shots at North Korean Boat Crossing Sea Border

South Korea fired warning shots after a North Korean patrol vessel temporarily crossed the sea boundary while chasing a Chinese fishing boat. The incident came amid recent tension over the North’s missile tests. The North’s incursion came as tension flared over the North’s stepped-up military activities in recent weeks, including Friday’s test of a new solid-fuel intercontinental ballistic missile which experts say would facilitate missile launches with little warning. Pyongyang has threatened military action as South Korea and U.S. forces carry out their annual springtime exercises since March, calling them a rehearsal for nuclear war.