Ethiopian authorities said 191 bodies had been found.
Ethiopian authorities were also perplexed at first, officials said.
It was alleged that the Ethiopian authorities were also blocking access to the region.
The Ethiopian authorities, who normally do not acknowledge guerrilla activities, had made no statement on the attack by early today.
Ethiopian authorities were not available for comment.
According to the Ethiopian authorities, once the dam has been built the total amount of water flowing into the lake will not change.
The Ethiopian authorities have to respect not only their laws but also international human rights standards.
The Ethiopian authorities must be put under strong pressure by us to reveal how many of their citizens they are mistreating.
In order for this to happen, the Ethiopian authorities must show the world that they are willing to resolve the current crisis.
Aid workers and the Ethiopian authorities are sounding an alarm with growing intensity.