US Secretary of State Rex Tillerson announced on Sunday, two days before his visit to Moscow, that he was not clear about the real intentions of Russia to Syria where Russia proved incompetent in overseeing the elimination of chemical arsenals President Bashar al-Assad.

"It will be a part of the conversation that we take when I arrive in Moscow next week: I will ask the Minister of Foreign Affairs Sergey Lavrov and the Russian government to respect its commitments to the international community that they agreed on when they gave their consent to ensure the elimination of chemical weapons" Tillerson said in an interview with the ABC network.

"It is not clear to me why Russia has not been able to fulfill this mission. I do not want to draw a conclusion that they were accomplices, but they clearly are incompetent, and maybe Syrians toyed with them," he added. The international community blamed the regime in Damascus for the chemical attack carried out on Tuesday that killed more than 70 people, including dozens of children. In response, the United States in the evening on Friday threw missiles Tomahawk on Syrian air base. That is the base which Washington holds responsible for the chemical attack on Kan Sejkun.

"They are clear allies of Bashar al-Assad," said Tillerson about Russia. "Russia should have a big impact on Assad and not allow him to use chemical weapons".

Damascus denies that they brought chemical attack, and Russian President Vladimir Putin considers the American retaliation "aggression against a sovereign state."

Putin and Rohani in a telephone interview condemned the US aggression in Syria

Russian President Vladimir Putin and Iran's president Hassan Rouhani in a telephone interview on Sunday said that the US aggression against Syria is not permissible and is, in fact, in violation of international law, the Kremlin announced.

The two leaders have called for an objective investigation of chemical attacks in the Syrian city of Idlib and stressed that they are willing to expand cooperation in the fight against terrorism. Kremlin specifies that the telephone conversation occurred on the initiative of Iran.

Rohani also met with Syrian President Bashar al-Assad and told him said that accusations that Syria carried out a chemical attack are only an excuse to break the Syrian peace process, announced an Iranian television.

Rohani condemned "obvious American aggression on Syria" and criticized the Arab Gulf States that support it. "Unfortunately there are countries in the region that support American aggression," said Rohani.

Saudi Arabia has called the attacks "a courageous decision," of President Donald Trump and the United Arab Emirates reiterated this support. Both countries are part of the coalition against the militants of the Islamic state in Syria, led by the United States.