Office buildings in Shanghai, including the Jin Mao Tower and the Hong Kong New World Tower, were evacuated (all the people were made to leave). Emergency services in Chengdu could not answer all the phone calls . Workers at a Ford plant in Sichuan were evacuated for about 10 minutes. The Chengdu airport was shut down. One SilkAir flight was sent to land in nearby Kunming instead. Cathay Pacific flights from Hong Kong to London were stopped. Chengdu airport reopened as the airport was used for relief operations.