North Korean authorities on Wednesday blocked foreign tourists crossing the border from China as a preventive measure after the outbreak of a new coronavirus in its neighbor, according to tourist companies.Beijing-based Koryo Tours said it was contacted by a business partner in North Korea about the measure on Tuesday, adding Pyongyang's move may also apply to people traveling from China to North Korea on business.Meanwhile, a tourist company in Dandong, a northeastern Chinese city on the border with North Korea, said it was asked to stop day trips on Tuesday, and notified of a ban on all t…READ FULL ARTICLE