Egyptian President Mohamed Morsi in the national dialogue late Monday renewed his invitation to the main opposition bloc (NSF) which earlier refused to participate in the meeting, official Ahram website reported Tuesday.

During the four-hour long Egyptian national dialogue, Morsi said "I am ready to communicate personally with the leaders and members of the NSF and reinvite them to a dialogue," according to the report.

The NSF refused the president's call for the dialogue as it ignored the front's main demands for forming a national unity government and amending the constitution, said the NSF at a press conference.

"We don't refuse the dialogue with the presidency in general, but we refuse the dialogues that won't benefit the Egyptian people, " said Hamdeen Sabahy, a leading member of NSF.

Based on the dialogue, a legal political committee to study and prepare the document over the controversial articles of the newly drafted constitution will be formed, including five members of politicians and another five from legal and constitution field.

The participants in the dialogue chose six members for drafting the document, and left the other four to the NSF to choose.

Another four internal committees will be formed, respectively in charge of political, economic, media and security affairs.

More details about the dialogue will be announced at a press conference on Tuesday.

Due to the tense political conditions which left more than 50 dead and almost 2,000 injured over the past four days, Morsi issued on Sunday a statement that invited 11 parties and some independent figures for dialogue on Monday, including al-Dostour Party, the Muslim Brotherhood's Freedom and Justice Party, al-Wafd Party, Strong Egypt Party and others.

Morsi also decided Sunday to impose a 30-day curfew and a state of emergency on Port Said, Suez and Ismailia after bloody clashes between anti-government protestors and securities in the three governorates.

However, a lot of anti-government protesters took to the streets and violated the curfew despite of the deployed armed forces.