CAIRO, March 14 (Xinhua) -- Supporters of former Egyptian President Mohamed Morsi staged massive protests across the country, resulting in clashes with security forces and about 50 arrests, local media reported.
The protests took place in a number of governorates, including the capital Cairo, Giza, Alexandria, Damietta, Minufiya, Fayoum, Gharbiya, Qena and North Sinai.
The marches were urged by a pro-Morsi Islamist alliance led by the Muslim Brotherhood. Morsi's loyalists chanted slogans against the military and the police.
The alliance referred to the marches in a statement as " peaceful and creative resistance." But a building in Giza's Pyramids city was set on fire during the demonstrations. Firefighters managed to control the situation.
Security forces arrested 50 Brotherhood supporters across Egypt.
Egypt's military launched a massive crackdown on Morsi's supporters after they ousted the former president in last July. The interim government has even blacklisted the Muslim Brotherhood as a "terrorist organization."
On mid-August last year, the security forces dispersed two major pro-Morsi sit-ins in Cairo and Giza, which left about 1,000 people killed and thousands arrested.
On Thursday, the Egyptian Foreign Ministry summoned a number of European ambassadors in Cairo to protest their previous joint statement that criticized human rights conditions in Egypt and denounced the crackdown on Morsi's supporters.