Egyptian authorities on Saturday referred 26 Muslim Brotherhood leaders to State Security Emergency Prosecution in the Delta governorate of Daqahliya.

The detainees are charged with incitement to murder and over their alleged involvement in the besieging of the governorate headquarters and security directorate building during rallies supporting deposed president Mohamed Morsi.

Deadly clashes had erupted Friday between supporters and opponents of deposed president Mohamed Morsi in the city of Tanta, leaving two dead and at least 25 injured.

On Saturday afternoon, prosecutors visited the site of the clashes to examine the scene and ordered forensics to review the medical reports of the two killed in Friday’s violence.

A Tanta security official announced on Friday that the identity of one of those killed is still unknown. The other has been confirmed as Mohamed Abdullah, who is believed to have been a Morsi loyalist.

The National Alliance to Support Legitimacy, an Islamist coalition led by the Muslim Brotherhood against Morsi’s ouster, announced it would stage demonstrations dubbed the 'Friday of Martyrs' nationwide to protest the deadly crackdown on their sit-ins last week by security forces.

However, Egypt witnessed a significant low pro-Morsi protester turnout in comparison to previous Fridays.