Russia criticized unilateral US and European Union sanctions against Damascus, as it voiced skepticism about forming buffer zones in Syria.

Saying they worsen the plight of the Syrian people, Russian UN ambassador Vitaly Churkin, called for exerting efforts in a bid to improve the humanitarian situation for the Syrians.

Churkin said he agreed with UN refugee chief Antonio Guterres, who warned the Security Council against the so-called “safe zones.”

"He (Guterres) made it very clear he thought that history showed that they cannot be relied on as an effective tool for protecting civilians - that we must work together in order to help alleviate and improve the humanitarian situation for the entire population of Syria," Churkin told the council.