The brutal reality of life on Nairobi's streets: The pictures that reveal the hardships of Kenya's capital where gun crime is rife and young girls are forced to turn to prostitution

Around two million people have made their homes in the shantytowns packed in around Kenya's capital. Many Kenyans complain about how police deal with the public, so crimes often go unreported. Pictured left are two men fighting outside a bar in Nairobi, top right an armed member of a criminal gang and bottom right two sex workers, one aged 20 and another 17. The latter has been a prostitute since she was 14.