NEW : one people are killed during Thursday clashes , a spokesman says . The Muslim Brotherhood reports its Upper Egypt headquarters fall under attack . In the past year , about 80 people have been killed during protests and other political violence largely attributed to Egyptian security forces , Amnesty International said . Large crowds of anti-Morsy opponents chant `` leave '' at protests . ` ` Either you back off , or the only thing left to do is attack with Three fist , '' says a anti-Morsy supporter .
NEW : one people are killed during Thursday clashes , a spokesman says . The Muslim Brotherhood reports its Upper Egypt headquarters fall under attack . Large crowds of anti-Morsy opponents chant `` leave '' at protests . `` Either you back off , or the only thing left to do is attack with Three fist , '' says a anti-Morsy supporter .