Uganda, March 17 -- Egypt and Ethiopia have once again locked horns in a fresh row over the latter's massive dam project, Grand Ethiopian Renaissance Dam (GERD), which is being built in the main tributary of the Nile River.

The new development comes after Cairo issued a fresh warning saying that 'all options are on the table' to deal with any threats to its water supply posed by the Ethiopian mega-dam.

"All options are open, and all alternatives remain available, and Egypt has its capabilities and its foreign relations," Egyptian Foreign Minister Sameh Shoukry warned on Wednesday.

"We just declare all options open without defining specific procedures, and this serves the Egyptian interest in retaining all available alternatives'" Shouk...