NSANJE, MALAWI — Thousands of Mozambicans have fled to Malawi to escape violence triggered by the disputed October presidential election. The latest statistics show that Malawi has received about 13,000 refugees from Mozambique in recent weeks, many of them women and children. Authorities say that the number is expected to rise. Sofia Jimu, the traditional leader of the Tengani area in Mozambique, is among those who fled to Malawi. She said a lack of food is the main challenge at the evacuation center where she is staying, adding that three children collapsed because of hunger in just one day. However