Collapsed houses are seen after an earthquake of 6.6 magnitude, on the side of a road leading from Ya'an city to Lushan county, in Ya'an, Sichuan province, April 20. The earthquake hit southwestern China's Sichuan province on Saturday, killing at least 56 people and injuring about 600 close to where a big quake killed almost 70,000 people in 2008. - Reuters/Stringer