Fires still burn at China blast site Fires are still burning at the site of two massive explosions in the Chinese city of Tianjin, some 36 hours after the blasts.A team of military chemical experts is testing for toxic gases at the scene and rescuers have been ordered to wear protective clothing, state media said.At least 50 people died and hundreds were injured, 71 critically, in the explosions on Wednesday evening.Meanwhile, search teams found a survivor in the debris on Friday.