Interim President Adly Mansour met with Egypt's defence and interior ministers and intelligence chief in the presidential palace Saturday morning.
Mansour, who was sworn into office Thursday morning, also met with his new aides, constitutional consultant Judge Aly Awad Saleh, political consultant Mustafa Hegazy, and security consultant General Rafaat Shehata.
According to a presidential source, the meetings focused on ways to secure protests and ensure national security.
The source added that Adly focused his discussion with constitutional and political aides on a new constitutional declaration that will be announced soon. The declaration will provide details on how the upcoming transitional period will be managed.
Adly will also meet with representatives of different political forces and members of the Rebel movement.
On Wednesday evening, Defence Minister Abdel Fattah El-Sisi announced that Mohamed Morsi had been removed, to be replaced by Mansour, head of the High Constitutional Court, until new elections are held.