Kam Air deputy chief Feda Mohammad Fedawi told a news agency, "The plane, carrying 160 passengers, left Kabul and was crossing Kyrgyzstan on its way to the Xinjiang capital, when it was told to turn back."
Xinhua News Agency had earlier reported that the plane had been hijacked, but then said it had landed in Kandahar, Afghanistan, after a bomb threat.
However, a press officer for NATO forces in Afghanistan, which control the Kandahar airport, said the alliance had received no report of a plane forced to land there.
US Navy Chief Petty Officer Brian Naranjo said, "I doubt that anything like that has taken place based on the information we have right now." He also said,"That's a significant activity. If something that significant happens we would know about it."