Russian Deputy Foreign Minister Gennady Gatilov referred on Wednesday to a video showing Syrian rebels in Aleppo executing members of shabiha, the militia loyal to the Assad regime, saying it proves that both sides have committed human rights violations.

“The harsh massacre of supporters of the government by the opposition confirms human rights violations are taking place on both sides,” Gatilov said on twitter. “It would be useful if Western and Arab politicians looked at the situation in Syria from this angle too. Everybody must stop violence.”