Egypt Protesters Ransack, Burn Muslim Brotherhood Headquarters AP: CAIRO Protesters stormed and ransacked the Cairo headquarters of President Mohammed Morsi's Muslim Brotherhood Islamist group on Monday. An Associated Press video journalist at the scene said protesters stormed the six-story building in an eastern Cairo district, leaving the heavily fortified villa with furniture and files. Footage on local TV networks showed smashed windows and smoke billowing out of the building. One protester was seen removing the Muslim Brotherhood sign from the building's front wall. The storming of the Brotherhood's headquarters followed overnight clashes between armed Morsi supporters barricaded inside the building and young protesters pelting it with firebombs and rocks. Protesters attack Muslim Brotherhood HQ in Cairo Massive protests in Egypt against President Morsi Obama: U.S. won't take sides in Egypt's political clashes At least 16 people were killed and more than 780 injured in the violence Sunday and early Monday, Health Ministry spokesman Yehya Moussa told state television. On Sunday, supporters of the Islamist leader barricaded inside the Brotherhood office opened fire on protesters pelting the suburban villa with rocks and firebombs. A fire broke out in the heavily fortified building.