( CNN ) -- Unrest and dissension rolled across Egypt on Friday as authorities killed two Muslim Brotherhood members during a gunfight and clashed with protesters in several cities . Egyptian security forces killed the Muslim Brotherhood members during a gunfight in the Nile Delta , north of Cairo , the state news agency MENA reported Friday . Several men attempted to torch a traffic checkpoint and opened fire on police guarding a highway connecting the cities of Tanta and Al-Mahalla Al-Kubra in the northern governorate of Gharbiya , MENA said . One assailant was arrested , but the others escaped , the report said . Egyptian police dispersed protests organized by supporters of former President Mohamed Morsy in various cities , arresting a number of protesters . In Fayoum , police fired tear gas to disperse a demonstration . Police officials said they arrested five protesters , including a student , and confiscated a weapon . Seven people were injured . Police dispersed protests in Damietta , arresting four people . Police said they confiscated knives and images of `` the four-fingered sign '' from protesters , a reference to the image of a yellow hand used by many Morsy supporters . Muslim Brotherhood supporters clashed with opponents in Damietta , according to reports . A number of shop windows and one car were slightly damaged in the clashes . Several pro-Brotherhood demonstrators were arrested during protests in the northern port city of Alexandria , security officials said . The group said in a statement on Facebook that one protester was killed in Alexandria . However , the city 's security chief , Nasser El-Abd , has not confirmed the allegation . Security forces fired tear gas at dozens of pro-Morsy protesters gathering in the northeastern Cairo district of Nasr City and in Giza 's Haram district . In Ain Shams in eastern Cairo , Al-Ahram Arabic news website reported clashes on Friday afternoon between about 300 Morsy supporters and riot police . Protesters denounced the presidential candidacy of former military chief Abdel Fattah El-Sisi , chanting against the police and the army . The former field marshal , whose popularity has skyrocketed since he led Morsy 's ouster , is expected to win the May presidential election . Egyptian authorities have officially designated the Brotherhood a terrorist organization , accusing it of links to Islamist militants . The group denies any links to violence and insists that its means of protest are all peaceful . Attacks targeting police and the army have spiked since the military ousted Morsy last summer amid massive nationwide protests against his rule . An ongoing crackdown on his Islamist supporters has left hundreds killed and thousands behind bars . The government says that nearly 500 , mostly police officers and troops , have since been killed in shootings , bombings and suicide attacks .
Egyptian authorities said that Brotherhood members attempted to torch highway signs . Two Brotherhood members were killed in the attack . Supporters of ousted President Mohamed Morsy protested in several cities . Police said they seized weapons in Damietta .