FIGHTING is still going on in several parts of Ethiopia's northern Tigray region and almost 2.3 million people, or nearly half of the population, need aid, a U.N. report said. The report, the most comprehensive public assessment of the humanitarian situation in Tigray since conflict erupted there on November 4, has been posted online. It said food supplies were very limited, looting was widespread and insecurity remained high. Federal government troops are fighting the Tigray People's Liberation Front (TPLF), a political party that was governing the province. The government declared victory in late November though the TPLF vowed to fight…