The leaders of Egypt, Sudan and Ethiopia agreed late Friday to return to talks aimed at reaching an accord over the filling of Ethiopia’s new hydroelectric dam on the Blue Nile, according to statements from the three nations.

Early Saturday, Seleshi Bekele, Ethiopia’s water and energy minister, confirmed that the countries had decided during an African Union summit to restart stalled negotiations and finalize an agreement over the contentious mega-project within two to three weeks, with support from the AU.

Egypt and Sudan said Ethiopia would refrain from filling the dam next month until the countries reached a deal.

Just last week, Ethiopian Foreign Minister Gedu Andargachew warned that his country could begin filling the dam’s reservoir unilaterally, after the latest round of talks with Egypt and Sudan failed to reach an accord governing how the dam will be filled and operated.

Sticking points in the talks have been how much water Ethiopia will release downstream from the dam if a multi-year drought occurs and how Ethiopia, Egypt and Sudan will resolve any future disagreements.