The National Security and Defense Council's (NSDC) Secretary Oleksandr Turchynov believes that Russian President Vladimir Putin's peace initiatives on implementation of the Minsk agreements are a cover for intensification of the military confrontation in Donbas. The press service of the NSDC announced this in a statement, Ukrainian News Agency reports. According to the statement, Turchynov visited the positions of the ATO forces near Mariupol (Donetsk region), where he held a meeting with the military leadership. The secretary of the National Security and Defense Council noted the significant escalation of the situation near Mariupol. According to Turchynov, the situation in the ATO zone remains very tense and militants' artilleries were constantly firing at Ukrainian positions during his visit to the village of Vodiane and Ukrainian positions near Kominternove (Donetsk region). "The secretary of the National Security and Defense Council of Ukraine also said that the possibility that the peace initiative of the Russian side is only a cover for intensification of the military confrontation cannot be ruled out," the press service said. According to Turchynov, Ukrainian anti-terrorist forces are ready for any eventuality because Ukrainian positions on the line of contact have been strengthened. As Ukrainian News Agency earlier reported, Putin recently said that Russia was ready to expand the mission of the Organization for Security and Cooperation in Europe (OSCE) in the areas from which heavy weapons have been withdrawn and the holding areas for the withdrawn weapons in Donbas.