The World Health Organization says it's only able to help a "tiny percentage" of those in need in the Ethiopian region of Tigray a month after a ceasefire was agreed.
It said it did not have unfettered access to deliver medical aid.
Tigrayan fighters have started to withdraw from frontlines and their representatives are meeting the federal government to discuss disarmament.
Aid workers say Eritrean troops and Ethiopian regional militias are continuing to kill and abuse civilians in Tigray.
The region was almost completely cut off from the rest of the world during the two-year war.
