This very graphic video shows how Nigerians (mostly Igbos) trying to cross to Europe through the Sahara Desert die in the desert from lack of water, food and heat. These men, sometimes in a group of 50, attempt to trek from a city in Niger or Morocco via the desert to European countries like Spain and Italy, but some of them don't make it out of the desert alive. See the video after the cut. *Warning - graphic content)