Hamdok calls for prime ministers to hold talks over Nile dam Thursday April 15 2021 The Blue Nile river as it passes through the Grand Ethiopian Renaissance Dam (GERD), near Guba in Ethiopia, on December 26, 2019. PHOTO | AFP Advertisement Following a stalemate in the Nile dam talks in Kinshasa, Sudanese Prime Minister Abdalla Hamdok has suggested that further talks be held at heads of state level. In a letter written on April 13 to Ethiopian Prime Minister Abiy Ahmed and Egyptian Prime Minister Mustafa Kamal Madbouly, Dr Hamdok says that negotiations over the filling of the Grand Ethiopian Renaissance Dam (Gerd) have reached an impasse and the three countries should now revoke Article 5 of the Declaration of Principles signed in March 2015.