The shelling comes amid ongoing joint South Korea-US drills in the region.
Students are 'disgruntled' by the instructions, a source says.
North Koreans shell out hundreds of yuan for China-smuggled cloth for ‘hanbok’ dresses.
Authorities and shipping companies must be more vigilant in enforcing sanctions, it says.
Authorities have arrested guards along the route the 'spy' allegedly traveled, a source says.