Aid agencies distributing U.S. food aid in Ethiopia's war-affected Tigray region say they have had to stop feeding millions of people because of the Trump administration's restrictions on foreign aid.

Officials administering Ethiopia's Tigray region asked for federal help on Wednesday as a faction of the main regional party seized control of a town, stoking fears of a return to conflict in the war-scarred region.

It follows a deepening power struggle within the Tigray People's Liberation Front (TPLF), which has raised concerns of a return to civil war. One Mekelle resident told the BBC that people were withdrawing money from their bank accounts,