Prime Minister Mostafa Madbouly headed earlier Saturday for the Sudanese capital of Khartoum to attend a ceremony held to mark the signing of the constitutional declaration agreed by all Sudanese parties. The premier takes part in the inking ceremony on behalf of President Abdel-Fattah El-Sisi, the current chairperson of the African Union. Madbouly is set to convey the greetings and congratulations of president Sisi to the Sudanese people on the signing of the accord. He will also assert Egypt's support for the aspirations of the Sudanese people and institutions towards achieving further progress and prosperity.