Khat is a narcotic leaf that induces mild euphoria popular in Somalia, Yemen and Ethiopia among others Drug was reclassified as Class C in the UK and banned in a ruling that came into effect last June There are an estimated 20 million khat addicts across the Horn of Africa and the Arabian Peninsula Mental illnesses, mouth and heart disease and gang violence are all problems linked to khat use Fresh, green and innocent-looking, the neatly tied bunches of khat found in markets across the Horn of Africa look far from dangerous. But, as these photographs reveal, that is exactly what they are. Banned in the UK earlier this year, khat, a narcotic green leaf which produces a sense of euphoria in users, is a common sight on the streets of Yemeni capital Sana'a as well as other cities in the region. But with side-effects that include mouth disease, tooth loss and, in some cases, mental illness, the drug takes a terrible toll on addicts, which in some cases, include children as