The most powerful earthquake in 30 years devastated the southwest of the country. Rescue teams are digging through rubble, trying to reach survivors of a powerful earthquake in China. Bodies covered with sheets lined streets yesterday as rescue workers dug through schools and homes turned into rubble. The total number of casualties remains unknown as heavy storms prevented relief workers from reaching victims at the epicenter of the powerful quake. The official death toll rose to more than 12,000 in Sichuan Province alone, with thousands remained buried or missing. There was concern today for a group of 15 British tourists missing in the Chinese earthquake. The quake was centered just north of the Sichuan provincial capital, Chengdu, tearing into urban areas and mountain villages. In Mianyang City alone near the epicenter, 3,629 people were dead and 18,645 were still buried in debris, Xinhua reported. At least 4,800 people also remained buried in Mianzhu, 100km from the epicenter,...