Almost 900 students have been buried by collapsed buildings during an earthquake in south-western China, state media reports.President Hu Jintao urged "all-out" efforts to rescue victims of the quake, which hit 92km (57 miles) from Chengdu, Sichuan's provincial capital.
Premier Wen Jiabao is travelling to the area and troops are being sent to help with disaster relief efforts.
At least 107 people are reported to have died, but figures could rise.
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