| The United States has warned American travellers to be vigilant against a terrorist attack in China's restive northwestern region of Xinjiang after Beijing told police there to be prepared for danger. The call came ahead of the 50th anniversary on Saturday of the establishment of Xinjiang as an autonomous region. Muslim Uighur militants, whom Beijing calls terrorists or separatists, have been struggling for decades to make the remote region, formally established on Oct 1, 1955, an independent state called East Turkestan. "Americans considering travel to the region and those already there should review their plans carefully, remain vigilant with regard to their personal security and exercise caution," a message e-mailed from the US embassy in China said. "Terrorists do not distinguish between official and civilian targets. Americans in remote areas or border regions where military or police authority is limited or non-existent could also become targets." |