in recovering bodies, saying he feared the city risked an epidemic of infection from the large number of bodies under the rubble and in the water. the libyan red crescent described the scene as like a bombardment and earthquake at the same time. when the dams collapsed, a wall of water weighing 1.5 million tonnes crashed down the wadi derna river, gouging out huge parts of the city, before reaching the sea. to give you a sense of the power of that tsunami, 20 centimetres of fast moving water, is enough to knock adults off their feet. here, there was three metres of water sweeping away everything in its path. the human cost is colossal this man hasjust found his son and begs rescue workers not to touch him. desperate scenes repeated again and again, some people have lost 30, 40, 50 members of their extended family. let s start by hearing from one survivor who describes what he went through. translation: we woke up at around three or 3.30 in the morning. - we heard a