People burn incense and paper money – a traditional way of mourning – to their families killed by a deadly mudslide one year ago in Zhouqu county, Northwest China's Gansu province, Aug 8, 2011. The rain-triggered mudslide killed 1,471, injured 2,500, and left 294 missing. [Photo/Xinhua]

Mourners lay wreaths for their family members killed by a deadly mudslide that occurred one year ago in Zhouqu county, Northwest China's Gansu province, Aug 8, 2011. [Photo/Xinhua]