Ethiopian officials say they expect a further increase in the death toll from flash floods that hit the east of the country on Saturday.
The officials spoke as rescue workers continued digging through mounds of mud and debris in and around the town of Dire Dawa.
The rain swollen Dechatu river burst its banks near the town late Saturday, drowning many people in their homes as they slept. Officials said Monday that the floods had killed at least 206 people.
Ninety-six people have been rescued, while another 300 are still missing.
Annual rains often cause flooding in Ethiopia's southern and eastern lowland areas. The government said last week that floods in the southern Oromia region had affected about 15,000 people.