"Sergei Lavrov pointed out that Syrian authorities have been long ready let militants encirled there freely exit [eastern Aleppo], but they still refuse to cease fire being influenced by al-Nusra Front terrorist group's commanders," the statement read.
Lavrov also called on Washington to persuade Syrian rebel groups supported by Washington to stop hostilities in Aleppo.
Over the recent months, Aleppo became a major battleground in Syria between government forces and militants. On Tuesday, the Russian reconciliation center said that the Syrian government army was controlling over 98 percent of the territory of Aleppo, with militants present in less than 3 square kilometers (1.1 square mile).
According to the statement, the US Secretary of State said that Washington is working with Syrian opposition groups that sabotage UNSC demand on the immediate resumption of Syrian peace talks.
"John Kerry has assured that the US is working with opposition groups that are sabotaging the UN Security Council's demand for an urgent start of intra-Syrian talks without preconditions."
The opposition and Damascus, along with the mediators, have been engaged in UN-brokered settlement talks. The latest round of intra-Syrian talks took place in Geneva in April. The HNC opposition group walked out of the negotiations, citing the continuous fighting in Syria and the lack of progress on humanitarian issues. HNC transition plans included constitutional revision in its final stage.
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