Lee Jae-myung, chairman of the main opposition Democratic Party, was attacked on the left side of his neck by an unidentified man at 10.27am during a question and answer session with reporters after touring the construction site of a new airport on Busan's Gadeok Island.
Air quality readings at all three monitoring stations in the state remain in the moderate range, with parents advised to monitor their children's health
More countries announce airspace closures as carriers suspend flights on Feb 28 and March 1, passengers reminded to check for updates on subsequent flights
