Last month, the Ethiopian government launched an offensive against a rebellious regional government. The ensuing conflict has killed hundreds, and almost 50,000 Ethiopians have crossed into Sudan.
The U.N. humanitarian agency announced the agreement Wednesday. Since fighting began in the disputed region roughly a month ago, tens of thousands of residents have fled for Sudan.
Prime Minister Abiy Ahmed ordered a government offensive after accusing the Tigray People's Liberation Front of attacking Ethiopia's military. There are fears the conflict may escalate into civil war.
Prime Minister Abiy Ahmed said forces of the Tigray People's Liberation Front, which controls Ethiopia's north, had attacked a federal military base, requiring a counter-attack.
