Rescuers are racing against time in the search for survivors on Tuesday, a day after a quake struck China's south-western province of Sichuan. The death toll has surpassed 12,000. Premier Wen Jiabao, who flew to Sichuan on Monday, urged the public to have "composure, confidence and courage' in the face of the catastrophe. Mr. Wen is heading a temporary disaster relief headquarters.