More than 30 people on Friday were injured in clashes between police forces and protesters in the area surrounding Suez' city council, an Aswat Masriya witness reported.
12 policemen were injured in the clashes, some of whom were transferred to hospitals for treatment, head of the Suez security directory Major General Adel Refaat.
Security forces fired teargas canisters at the demonstrators which caused scores to suffer suffocation.
Police forces were able to bring three people off the city council building after they had climbed and put Egypt's flag on top of it.
Hundreds took part in marches in Suez today to express their opposition for the rule of President Mohamed Mursi and the Muslim Brotherhood and to demand justice for the martyrs.