Thousands of protesters have taken to the streets of Egyptian cities of Port Said, Ismailiyah and Suez in defiance of President Mohamed Morsi's declaration of a curfew and a state of emergency after days of deadly unrest.

The crowds shouted "Down down with Mohamed Morsi, down down with the state of emergency," in Ismailiyah and similar slogans were heard in the other cities along the Suez Canal.

Five days of unrest has led to 50 deaths, and police once again clashed with protesters in Suez and downtown Cairo on Monday. At least two people were killed in Monday's clashes in Port Said.

In Suez, meanwhile, hundreds of prisoners at a city jail made a failed attempt to escape during chaotic protests.

Al Jazeera's Rawya Rageh reports from Port Said.