MOSCOW, November 30. /TASS/. Experts of the Russian Defense Ministry have started to examine the possible chemical weapons production sites in Aleppo, head of the Chief Operations Directorate of Russia’s General Staff Sergei Rudskoy told reporters on Wednesday.

"Upon the Syrian government’s request, experts of the Russian Defense Ministry will examine the places where the militants could have produced chemical weapons," he said adding that the experts would also provide assistance to Aleppo residents.

According to Rudskoy, two weeks ago, experts from Russia’s nuclear, biological and chemical protection troops confirmed that militants had used a homemade chemical bomb against civilians in the province of Aleppo. The bomb contained a poisonous substance reminiscent of mustard gas.

"The bomb was examined, the results have been handed over to the Syrian state body supervising the implementation of the Chemical Weapons Convention," Rudskoy said.