A new round of talks over the Grand Renaissance Dam that Ethiopia is building along the Nile have failed, Sudan’s Foreign Minister Ibrahim Ghandour said Friday. The foreign ministers and intelligence chiefs of Egypt, Ethiopia and Sudan met in Khartoum on Thursday, and after nearly 17 hours of discussions they failed to reach an agreement on issues concerning Addis Ababas ongoing construction of the controversial dam. "We didnt reach an agreement," Ghandour told reporters after the officials of the three countries wrapped up their talks. "We spent the whole day talking as ordered by the leaders of the three countries, but we didnt reach an agreement." "I cant specify what the disagreements were, but they were technical issues," Ghandour said, adding no new date had been fixed for the next round of talks. The latest round of discussion had been held after leaders of Egypt, Ethiopia and Sudan met in Addis Ababa last month and agreed to break the months long impasse over the dam. Ethiopia began building the $4 billion dam in 2012, but the mega project has triggered tensions primarily with Egypt as Cairo fears that once commissioned the dam will reduce water supplies from the Nile to Egypt. Egypt relies almost totally on the Nile for irrigation and drinking water.