Russia on Monday accused the United States of failing to meet its obligations in the de- escalation zone in southwestern Syria.
This comes following accusations by the US that Moscow has not been honouring all its duties in Syria.
"In fact, we would like to emphasise that the situation is quite the opposite. For months, the United States has done nothing to separate the moderate opposition from Daesh and Jabhat Al-Nusra terrorist groups in the de-escalation zone in southwestern Syria," the ministry said.
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On 20 June, the Syrian regime – in cooperation with Russia and loyal militias – launched an intensive air and ground attack on the southwestern province of Daraa before a ceasefire agreement was reached with the opposition.
The attacks violated an agreement reached by Russia with the United States and Jordan in July 2017 on the establishment of a de-escalation zone in southwestern Syria which includes Daraa, Quneitra and Suwayda.