A protester lobs a tear gas canister back toward security forces as violence continues to flare in the Egyptian capital.<br/> <br />It is the fourth day of violent protests in Cairo, as protesters demonstrate against President Mohamed Mursi, who they say has betrayed the revolution that ousted Hosni Mubarak two years ago.<br/> <br />At least 49 people have been killed in Egypt since the violence erupted last week.<br/> <br />Late on Sunday, Mursi declared a month-long state of emergency in three cities on the Suez Canal, where dozens of people have been killed in clashes with security forces.<br/> <br />Egypt's politics have become deeply polarised since the revolution that sent shockwaves through the region.<br/> <br />And in the streets of Cairo some people agreed with the state of emergency whilst others strongly opposed it.<br/> <br />(SOUNDBITE) (Arabic) PROTESTER SAMIR BEIALY, SAYING:<br/> <br />"It was a situation which required firmness or else huge chaos would've broken out in Suez and Port Said; and this is very dangerous for us because we know the Suez Canal is nearby and this is a very active lifeline for the whole world. Everyone goes to this place because of its strategic importance for the whole world-- Europe, America and Asia-- so it needs complete protection."<br/> <br />This man said the decision was influenced by Mursi's Islamist cohorts, the Muslim Brotherhood.<br/> <br />A source at Egypt's interior ministry confirmed that one bystander was killed in Monday's clashes which were also breaking out in other parts of the country.
