"The bodies must be transferred by hand to the foot of the mountain, which will be time-consuming," he said. Family members were grief-stricken and angry due to the long wait to locate the plane. More than 100 people reportedly demonstrated outside a local government office in Dena Kooh on Monday. They were demanding that officials step down for their handling of the disaster. Iran has suffered several plane crashes in the past few decades and has blamed U.S. sanctions for preventing it from importing new aircraft or spare parts.