NEW : France summons Syria 's ambassador to investigate an attack on its embassy . US State Department official : The Syrian government expresses anti - American sentiment . `` We have to admit that without the big sacrifices that were presented by the Syrian people , from the blood of their sons , civilians or military in more than one province , city and town , this meeting would n't have happened , '' he said . Also Sunday , a state - backed ` ` national dialogue '' meeting continued in Damascus . ` ` The violence needs to stop . ... Excessive violence is unjustified , '' one activist says .
NEW : France summons Syria 's ambassador to investigate an attack on its embassy . US State Department official : The Syrian government expresses anti - American sentiment . Also Sunday , a state - backed ` ` national dialogue '' meeting continued in Damascus . ` ` The violence needs to stop . ... Excessive violence is unjustified , '' one activist says .