North Korea's military fired a missile Wednesday that crossed the disputed maritime border with South Korea for the first time since the countries' division in 1948, officials in Seoul said.
The big picture: Seoul responded by firing three missiles following the launch of Pyongyang's short-range ballistic missile, which landed some 37 miles from the South Korean city of Sokcho and caused air-raid sirens to sound on Ulleungdo island, per the BBC.
