On May 31, literature urging the "government" to apologize for causing the tragic case of warship sinking and creating a crisis of a war was distributed in Jongro District and handbills saying that "evidence proving the sinking of the warship was cooked up" and "even a passing dog laughs" and flyers carrying the ugly face of Lee Myung Bak were scattered in the area of Songdong District on the same day.

Seen on the walls of buildings in Yongdungpho and Rowon districts on May 25 and 29 were posters "We would like to know about the truth about the warship 'Cheonan' case" and "We can't believe the results of investigation conducted to serve the purpose of the fabricated case of the warship 'Cheonan'".