Russian President Vladimir Putin and Syria leader Bashar al-Assad agreed on the withdrawal of Russian forces from Syria in a phone call, the Kremlin said Monday. 

"The President of Russia stated that the main tasks set before the armed forces of Russia in Syria had been completed. It was agreed to carry out the withdrawal of the main part of Russia's airforce contingent," the Kremlin said in statement, adding that the two leaders agreed Russia would maintain an airforce facility in Syria to help monitor the ceasefire.