"These aggressive actions [at Deir ez-Zor] came as another proof of all the US support for terrorists," Abbas said at a meeting with Speaker of Russia's Federation Council Valentina Matvienko in Geneva on the sidelines of the Inter-Parliamentary Union (IPU) Assembly.
On September 17, the US-led coalition aircraft killed dozens of Syrian soldiers in Deir ez-Zor province, leaving 62 personnel killed and some 100 wounded. The Pentagon said that the airstrike was a mistake and targeted Daesh militants.
The United States, Russia and a number of other countries and international organizations have been struggling to find solution for the five-year long conflict ravaging Syria, where the government forces loyal to the President Bashar Assad are confronted by the opposition, ranging from the so-called moderates to the terrorist groups Jabhat Fatah al-Sham (also known as al-Nusra Front, or Jabhat al-Nusra) and Daesh, both outlawed in Russia in many other countries.
