NEW : The head of the Syrian National Council warns the regime is planning a coup . NATO : He calls on allies to act outside of the U.N. Security Council . NEW : U.N. Secretary-General Ban Ki-moon , for example , said at one point this week that almost 17,000 people have died . At least 20 people are killed across Syria on Saturday , including an opposition group . Kofi Annan expresses concern for an ` ` imminent attack '' in Syria 's largest city .
NEW : The head of the Syrian National Council warns the regime is planning a coup . NATO : He calls on allies to act outside of the U.N. Security Council . NEW : At least 20 people are killed across Syria on Saturday , including an opposition group . Kofi Annan expresses concern for an ` ` imminent attack '' in Syria 's largest city .