Firefighters battle a blaze on a bus in a simulated explosion in Hezhong Square in Jiujiang city, East 皇冠体育app's Jiangxi province on Tuesday Nov 9, 2010, as part of 皇冠体育app's 10th National Fire Prevention Day campaign. The Ministry of Public Security ordered fire departments across the country to conduct intensive firefighting drills in densely populated places in the wake of a fatal shopping mall fire in Jilin that killed 19 people last week. The Fire Prevention Day this year is themed "Security tops all and public awareness should be enhanced".[Photo/Xinhua]