U.S. Secretary of State Antony Blinken spoke to Ethiopian Prime Minister Abiy Ahmed on Monday and pressed for Eritrean troops involved in the Tigray conflict to be withdrawn “immediately, in full, and in a verifiable manner,” according to a statement.

Blinken noted that Eritrean forces and Amhara regional forces in the conflict-torn region are contributing to the growing humanitarian disaster and committing human rights abuses, State Department spokesman Ned Price said in the statement describing the phone call.