"We regret to state that there is still no cooperation during the counterterrorist operation in Syria, but at the same time I would like to remind – and [Russian] President [Vladimir] Putin spoke about this – that we exchange information with our US partners through the existing communication channels twice a day. So the exchange of information is really taking place," Peskov told journalists.
He also added that there was no "secret" Russia-US agreement on Syria.
Russia launched airstrikes against terrorist groups in Syria in September 2015, at the request of Syrian President Bashar Assad. On March 14, Putin ordered to withdraw most of Russia's military contingent from Syria after objectives of the operation had been accomplished.
On February 27, a US-Russia brokered ceasefire entered into force in Syria, with terrorist groups such as the Daesh and Nusra Front, both outlawed in Russia, being excluded from it. Russia also organized a center for Syrian reconciliation at the Hmeimim airbase that is a platform for negotiations between the Syrian government and militant groups willing to lay down arms.