Ethiopia and Eritrea have accused each other of further waves of expulsions as a result of the border dispute which flared in May.
A government statement in Addis Ababa said five-hundred Ethiopians were expected to arrive at the north-eastern border town of Rama, bringing to some two-and-a-half thousand the number ordered home by Eritrea this week.
On Friday, Eritrean radio said Ethiopia had expelled three-thousand Eritreans in the last three days.
From the newsroom of the BBC World Service