CAIRO (AP) — Representatives from across Egypt’s political spectrum held a rare meeting to denounce violence following a week of rioting that left up to 60 people dead nationwide.

Egypt’s Muslim Brotherhood, Salafis, and their rival liberal parties pledged on Thursday to condemn the instigation of violence, prohibit it and differentiate between a “political act and sabotage.”

It was the first meeting between the opposition National Salvation Front and the Muslim Brotherhood since the Front was formed in November.

Violence escalated after the opposition called for protests to mark the second anniversary of the January 25, 2011 uprising, which toppled the rule of longtime authoritarian president Hosni Mubarak.

Opposition demands the new administration set up a nationally unified government and rewrite controversial parts of the constitution.