` The complicated interior structure of the prefabricated house in which the fire broke out and the narrow exits have added difficulties to the rescue work , sources with rescue forces said , '' the Xinhua report said . More than 100 people were inside at the time . Police tell that the gates were locked when the fire breaks out . Authorities do not know how many people are trapped in the building . The ` ` complicated structure '' and ` ` narrow space '' are posing difficulties for rescuers .
More than 100 people were inside at the time . Police tell that the gates were locked when the fire breaks out . Authorities do not know how many people are trapped in the building . The ` ` complicated structure '' and ` ` narrow space '' are posing difficulties for rescuers .