During his speech at an informal summit of the CIS countries in St. Petersburg, Putin said that "truly tragic events are taking place in Ukraine."
He added that in addition to this, conflicts sometimes arise between other close states of the post-Soviet space.
Putin stressed that this requires the development of measures to resolve these conflicts.
Earlier it was reported that Russian and Turkish leaders Vladimir Putin and Recep Tayyip Erdogan discussed the situation in Ukraine during telephone conversations.
On September 30, the Russian leader called on the Ukrainian authorities to "immediately cease fire, all hostilities" and return to the negotiating table.
Zelensky said that Kyiv is ready for negotiations with Moscow, but if there is another president in Russia.