NBC News — Aid workers at an emergency center in Kenya say the number of refugees fleeing drought stricken Somalia is increasing every day. The drought and the famine it has caused in Somalia have affected more than 11 1/2 million people in the Horn of Africa and created a triangle of hunger where the borders of Ethiopia, Kenya and Somalia meet.

Aid agencies have limited reach in Somalia where Islamist militants are waging an insurgency against the country's weak U.N. backed government. The U.N. fears that tens of thousands have already died in Somalia in areas held by the Islamist rebels because food aid could not reach them.