Egypt : The military personnel remained in the square into the evening . Two Egyptian officers are ordered to leave the building , a witness says . The number of demonstrators swells as the Muslim Brotherhood joins in . Police are seeking prosecution of former president Hosni Ahmed . Mubarak 's chief of staff has been arrested .
Egypt : Two Egyptian officers are ordered to leave the building , a witness says . The number of demonstrators swells as the Muslim Brotherhood joins in . Police are seeking prosecution of former president Hosni Ahmed . Mubarak 's chief of staff has been arrested .