Russia's foreign minister said Saturday the United States is trying to divide Syria.
During a meeting with his counterparts from Iran and Turkey, Sergey Lavrov said the recent U.S.-led missile strikes on Syria "seriously aggravated the situation."
He added that statements about supporting the territorial integrity of Syria "are only words that, apparently, cover plans for reformatting the Middle East and plans for dividing Syria into parts."
Lavrov met with Iranian Foreign Minister Mohammad Javad Zarif and Turkish Foreign Minister Mevlut Cavusoglu. Russia, Iran and Turkey are the guarantor states in the so-called "Astana process" aimed at ending the violence in Syria.
The three agreed to intensify efforts to provide humanitarian aid in Syria.
"We agreed that attempts to split Syria on ethnic and religious grounds were totally unacceptable," Lavrov said.
"We have stated that we will counter attempts to undermine our joint efforts and pointed out that the Astana process is stable," he said. "We will continue solving important tasks related to de-escalation, easing tensions and reducing the conflict potential. Cease-fire violations continue to happen but we have a mechanism to monitor them and we will seek to overcome this situation, particularly by strengthening trust among the parties on the ground.
"We will ensure that this aid is provided in the most effective way. We will be cooperating with the government, the opposition and of course with our counterparts at the United Nations, the International Red Cross, the Syrian Red Crescent and other international organizations," Lavrov said.
International aid groups have repeatedly accused the Syrian government, which is closely allied with Russia and Iran, of preventing the delivery of aid to besieged, rebel-held areas.
Lavrov also reiterated Russia's contention that the alleged chemical weapons attack on the town of Douma earlier this month was an "artificial pretext" for the missile strikes by the U.S., Britain and France.
The ministers issued a joint statement condemning chemical attacks and said any reports of their use should be "investigated promptly and professionally" by the Organization for the Prohibition of Chemical Weapons.
An OPCW team was repeatedly delayed in attempts to reach Douma to probe the reported attack.
Cavusoglu meanwhile criticized the United States for supporting Syria's main Kurdish militia, which played a key role in rolling back the Islamic State group and now controls much of northern and eastern Syria. Turkey views the Kurdish fighters as an extension of the Kurdish insurgency raging in its southeast.
"Today, the U.S. supports terrorist organizations, and this has to stop," Cavusoglu said.
