Egyptian President Abdul Fattah al-Sisi has broken his silence over the military coup in neighbouring Sudan and the ongoing protests calling for civilian rule.

Egypt has faced accusations of siding with Sudan's head of military, Abdel Fattah al Burhan but President Sisi dismissed the claims.

"Just because we have not issued any public statements does not mean that we are aligned to this side or the other side," he told reporters on the sidelines of the World Youth Forum being held in Sharm el-Sheikh.

He called on both the military rulers and the protesters to embrace dialogue to end the political crisis.

Separately, he said he was disappointed by the breakdown of talks between Egypt, Ethiopia and Sudan over the construction of a dam on the River Nile, which has been a source of a decade-long row between the countries.

He said Egypt had always been ready to co-operate on a binding agreement before the dam becomes fully operational.

He said the country had gone to UN Security Council because a solution hadn't been found yet.