Dozens of Sharia Students members marching from Asad Ibn al-Forat Mosque in Dokki arrived in Tahrir Square after the Friday prayers to join today's Islamist-led protests in support of Sharia.

The protesters chanted "Islam is coming," "The people want to apply God's Law," and "[Egypt is] Islamic in spite of the (constituent) assembly and seculars."

They raised banners reading their demands and white and black flags that read "No God but Allah." Some also held Egyptian and Saudi Arabian flags.

Altercations between the protesters and anti-Muslim Brotherhood passersby broke out on Mohamed Mahmoud street, when some observers began chanting against the Muslim Brotherhood and President Mohamed Morsy.

The protesters asked their opponents to leave the street following the quarrel.

Thousands began gathering in Tahrir earlier this morning morning to demand a stricter application of Sharia in the new constitution, as well as the dismissal of the prosecutor general. Some are also calling on Morsy to push for the US to release Sheikh Omar Abdel Rahman, known as the blind sheikh.

Protesters in the square chanted: "Islam is coming under the rule of Qur'an," "No God but Allah, I want God's Law," "[Egypt is] Islamic, in spite of seculars," "Leave Abdel Meguid (the prosecutor general), we want a firmer prosecutor," "Oh lying media, God's Law is not terrorism," and "No retreat, no surrender, until the prosecutor general leaves."

Members of Jama’a al-Islamiya’s Construction and Development Party blocked entrances to Tahrir from Qasr al-Aini and Mohamed Mahmoud streets with iron bars.

Jama’a al-Islamiya leader Safwat Abdel Ghany told Al-Masry Al-Youm that Morsy should call for the application of Sharia as a representative of the Islamist parties and the revolution. Morsy must not allow liberal and secular forces to determine the fate of Sharia, he argued.

Members of the Ansar al-Sunnah and Sharia Students movements set up a stage on the Qasr al-Nil Bridge, hanging banners reading “Bread, freedom, Islamic Sharia” and “God’s Sharia is security, God’s Sharia is happiness and serenity.”

Sheikh Omar Abdel Rahman’s family set up a symbolic stage on the pavement opposite the Egyptian Museum, raising banners calling on Morsy to fight for Abdel Rahman's release from prison in the US.

Some protesters formed human chains in the streets surrounding Tahrir, while others marched around downtown holding banners declaring their demands. Azhar students participated in the protest as well, carrying banners that demanded applying Sharia and the dismissal of the prosecutor general.

The protesters also began collecting signatures in the square for a petition demanding the application in Sharia in the constitution, distributing a statement reading: "I , the undersigned, accept adding a second clause to Article 2 stating that Sharia is the origin of the Constitution and that no article should overcome or contradict it."

The campaign was welcomed by participating Islamist movements.

Edited translation from Al-Masry Al-Youm