An injured boy looks with a friend at photographs in a newspaper related to the earthquake at a centre for missing schoolchildren in the city of Mianyang, located around 100 km north of Chengdu, in Sichuan Province May 16, 2008. China struggled to bury its dead and help tens of thousands of injured and homeless on Friday when a powerful aftershock brought new havoc four days after an earthquake thought to have killed more than 50,000. [Agencies]