French President Emmanuel Macron said Tuesday he would order a military response against Syria if proof emerged that the regime has again used chemical weapons.
Macron said the French and USA governments "share the same red lines and are in constant contact".
France "will strike the place where they are launched or where they are prepared", the French President warned.
"Use another word because all the red lines have been crossed and the (Syrians) are disappointed with these words", Abdulrahman Almawwas told reporters in Paris.
In the telephone call, Macron said he was "worried about indications suggesting the possible use of chlorine on several occasions against the civilian population in Syria in these last few weeks".
Russian Federation has intervened alongside Syrian regime forces in the seven-year civil war and Putin is seen as the foreign leader with the most influence over Syrian President Bashar al-Assad.
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Do red lines mean anything? .
But Mr Macron said French intelligence had so far found no evidence that banned chemical weapons had been used. But Obama opted out of military reprisal and secured an agreement to dismantle the Syrian chemical arsenal.
United Nations and other experts began probing the allegation in 2015.
In April 2017, an attack on the rebel-held town of Khan Sheikhoun left hundreds of people suffering from symptoms consistent with use of a nerve agent.
On January 22: A suspected chlorine attack in Douma, led to at least 21 cases of respiratory problems, including children, according to the Syrian Observatory for Human Rights.
The Syrian opposition said a government helicopter dropped the bomb on Saraqeb, in the north-western province of Idlib.