"We demand that the UN and the UN Security Council send an international commission to investigate this massacre and other crimes that were committed by the international coalition's aircraft in Deir ez-Zor, and especially those crimes in which banned weapons, such as white phosphorus, were involved, and whose victims were hundreds of civilians," Kazem said.
He added that the bombings had resulted in more than 1,000 civilians being killed, as they were used as human shields by the terrorists, who prevented them from leaving the last stronghold they controlled.
In early March, the SDF announced that they had resumed operations against terrorists in Baghuz after civilians were evacuated from the area. At the same time, human rights activists and local media claimed that dozens of residents who remained in the area had been killed as a result of the international coalition's airstrikes.
The US-led coalition, in turn, denied having any knowledge about civilian casualties.
*Daesh, also known as ISIS, ISIL, Islamic State is a terrorist group banned in Russia