South Korea Fires Warning Shots at North Korean Boat Incursion

South Korea fired warning shots and broadcast warnings to expel a North Korean vessel that crossed the two countries’ disputed maritime border. The reported North Korean incursion came as tension flared over Pyongyang’s stepped-up military activities in recent weeks, including Friday’s test of a new solid-fuel intercontinental ballistic missile. Pyongyang has threatened military action as South Korea and the United States have carried out their annual springtime exercises since March, calling them a rehearsal for nuclear war.