NEW : Police are investigating the threats to three Chinese airlines . CNN 's Feng Ke contributed to this report . Five different flights to the southern city of Shenzhen are affected . The threat was made on a Weibo account that is believed to be run by an extremist group called the East Turkestan Islamic Movement, or ETIM. The state-run news agency says the airlines received `` false bomb threats ''
NEW : Police are investigating the threats to three Chinese airlines . Five different flights to the southern city of Shenzhen are affected . The threat was made on a Weibo account that is believed to be run by an extremist group called the East Turkestan Islamic Movement, or ETIM. The state-run news agency says the airlines received `` false bomb threats ''