Protesters at an anti-Morsi rally, earlier this year. (Gigi Ibrahim/Flickr)

The Muslim Brotherhood organized the rally to support both Morsi and a new constitution draft, passed by a panel of the president's Islamist supporters.

SEE ALSO: Egypt's Draft Constitution Ignites More Anti-Morsi Protests

Activists from the Brotherhood party called for people to "support Islamic law," after hundreds of thousands flooded Cairo's streets this week protesting Morsi's self-proclaimed extended powers. Eighteen other groups, including the Egyptian Revolution's Alliance and the Revolutionary Front to Protect the Revolution, participated in the rally.

Anti-Morsi activists called for a third protest Saturday, but CNN said Tahrir Square was nearly unoccupied by noon.

SEE ALSO: Egyptian Assembly Rushes To Draft New Constitution 

Critics of Morsi claimed the draft constitution, which will be put to a national vote in two weeks, attempted to impose Islamic law. If passed, Morsi's sweeping new powers will be disbanded although it remains unclear whether Egypt will become a more free, democratic society.

For more of Neon Tomy's coverage on Egypt click here.

Reach Executive Producer Amanda Martinez here.