Egyptian security forces fired tear gas at dozens of supporters of ousted President Mohammed Morsi as authorities tighten security measures in the capital after renewed calls for mass rallies.

Anti-riot police chased student protesters chanting against the military and the police at the Islamic Al-Azhar University on Friday. Similar clashes took place Thursday night, leaving one person dead, as anti-Morsi civilians joined in the fighting with protesters, according to Egypt's official news agency. Clashes also erupted Friday in two other districts of the capital.

Armored vehicles closed main squares and city centers in Cairo and other major cities after Morsi's group, the Muslim Brotherhood, and its allies announced now protests in defiance of the interim government's latest move labeling the group as a terrorist organization.