The United Nations refugee agency said today it was hastening to replace supplies and put preventive measures in place after five accidental fires swept through two camps for Sudanese refugees in remote eastern Chad in the past four weeks. A 9-year old boy died and some 1,455 people were left homeless in the Amer and Djabal camps, due to the fires, which were caused by poorly tended open fires fanned by heavy winds, the UN High Commissioner for Refugees (UNHCR) has said.