Rescuers said that eleven people have been killed when a roof collapsed at a middle school gym in Qiqihar City, China.<br /><br />All 15 trapped were pulled out as the last trapped person was found Monday morning without vital signs, the rescue headquarters for the accident said at around 10 a.m. Monday.<br /><br />The remaining four people have been checked without life-threatening injuries.<br /><br />The roof collapse was reported at 2:56 pm on Sunday, according to the provincial fire and rescue department.<br /><br />There were 19 people in the gym covering about 1,200 square meters at the No. 34 Middle School of Qiqihar in Longsha District when the accident occurred.