Protesters opposed to the constitutional referendum began dismantling one of the recently-erected walls blocking the streets surrounding the presidential palace Tuesday evening. The Presidential Guard, which was stationed behind the wall, retreated to line up in front of the palace. A march left Nour Mosque in Abbasseya toward the presidential palace Tuesday afternoon, with participants chanting “Down with Morsy Mubarak” and “Morsy loves Mama America,” as well as chants referring to Salah Gaber, the young activist known as Jika killed during the protests commemorating the Mohamed Mahmoud Street clashes in 2011. A row of eight Al-Azhar sheikhs holding a banner reading, “Yes to Sharia, no to the constitution,” marched toward the beginning of the demonstration. Political forces, including the National Salvation Front, are marching to the presidential palace from a number of prominent squares and mosques around Cairo as part of a mass demonstration demanding the cancellation of the constitutional referendum slated 15 December and the new constitutional declaration. Leftist activist and founder of the unofficial Workers and Farmers Party Kamal Khalil led the march, chanting, “A theatrical play, the gang is the same, but with beards and galabeyas.” Ain Shams University students waited outside to join the march when it passes by, images broadcast by Al Jazeera Mubasher Misr showed. Demonstrators broke an iron gate at Shafiq Ghorbal Street in Heliopolis to join protesters at the presidential palace. Marches headed to the palace from locations in Nasr City, Abbasseya and Heliopolis, according to state-run TV's website. Mohamed Awwad, coordinator of the Youth Movement for Justice and Freedom, told Al-Masry Al-Youm that organizers had agreed to stage three marches.