نهر ديالى
Discussion since the 1990s has focused on sites along or east of the Tigris. Wall-Romana (1990) suggested a location near the confluence of the Diyala River with the Tigris, and more specifically Tell Muhammad in the south-eastern suburbs of Baghdad as the likeliest candidate for Akkad, although admitting that no remains datable to the Akkadian period had been found at the site.