NEW : Civilians stand arm - in - arm in front of tanks to protect famed Egyptian monuments . Thousands turn out in Alexandria for a fifth day , demanding President Mubarak 's ouster . Casualties mount , too , in Cairo and Alexandria , after demonstrators clash with police . Still , police are largely absent in many areas , contributing to widespread unrest .
NEW : Civilians stand arm-in-arm in front of tanks to protect famed Egyptian Museum . Protesters turn out in droves for a fifth day , demanding President Mubarak 's ouster . Casualties mount , too , in Cairo and Alexandria , after demonstrators clash with police . Still , police are largely absent in many areas , contributing to widespread looting .