A team of experts dispatched by the Ministry of Emergency Management is searching for over 50 people still listed as missing after a coal mine collapse in Alxa League, north China's Inner Mongolia Autonomous Region. The team arrived at the site early Thursday to guide the search and rescue operations involving hundreds of rescuers and dozens of medical workers besides large sets of specialized machinery. The incident took place at about 1 p.m. on Wednesday when a landslide occurred near the open coal mine and buried the miners and equipment operating on the site. So far four people have been found dead and six others injured.