South Korean protesters rally against a ban on propaganda leaflets in Seoul as tensions between the two nations rise.
Last week, North Korea threatened to attack the south if it continued to send anti-regime flyers across the border.
The move prompted South Korean authorities to ban the leaflets.
But on Tuesday, demonstrators said the government should not give in to the North's demands.
This North Korean defector man said the flyers, cash and other aid sent via balloons spread the truth about oppression.
Meanwhile, Seoul's military simulated a toxic gas attack on a mall in their capital as part of a security drill amidst the tensions.
North Korea's dire warning was the most explicit threat in recent months.
South Korea has promised retaliation if the North attacks, which has further escalated the situation.
