International diplomacy appeared to remain stagnant Thursday as Russian Foreign Minister Sergey Lavrov repeated Moscow 's complaint that Syria 's oppositional factions offer no centralized leadership to negotiate with . ` NEW : Death toll rises to 300 , opposition activists say , after weeks of grim tolls . State media : Government forces killed ` ` people '' in Deir Ezzor and outside Damascus . The opposition says the government is using shells and cluster bombs . Shells and bombs are used in and around Damascus , the opposition says .
NEW : Death toll rises to 300 , opposition activists say , after weeks of grim tolls . State media : Government forces killed ` ` people '' in Deir Ezzor and outside Damascus . The opposition says the government is using shells and cluster bombs . Shells and bombs are used in and around Damascus , the opposition says .