The Turkish president has urged Russia to stop backing Syrian President Bashar al-Assad, just more than a day after Turkey’s American allies launched scores of missiles in what they have called a retaliatory strike after a suspected chemical weapon attack in Syria’s Idlib province killed dozens.

“We hope that Russia gets involved as well  that at least they stop defending Assad,” said Turkish President Recep Tayyip Erdoğan

Russia had claimed Tuesday’s deaths were the result of Syrian aviation targeting a facility where projectiles were being stuffed with toxic agents, while Western countries have indicated they believe it was government forces.

“It is our hope that this will not be limited to the US action,” Erdoğan also said referring to the Khan Shaykhun attack and the six-year-long Syrian civil war.

Russia, Iran and Turkey have formed the tripartite attempting to broker peace between government and rebel factions in the Kazakh capital of Astana.

“Unfortunately it did not develop as we wanted, but let’s speed it up,” Erdoğan added. “Let’s get rid of this evil.”