The leaders of the Normandy format (Ukraine, Germany, France, and Russia) welcome a decision of the Trilateral Contact Group (TCG, Ukraine, the Organization for Security and Cooperation in Europe, Russia) to announce a ceasefire in the Donbas from August 23 on the occasion of the beginning of the school year. The press service of President of Ukraine Petro Poroshenko announced this in a statement, Ukrainian News Agency reports. "The Heads of State and Government of the "Normandy" format, France, Germany, Russia, and Ukraine, held a phone call on August 22, 2017. They expressed their strong support for the imminent decision of the Trilateral Contact Group on August 23 to announce a ceasefire on the occasion of the beginning of the school year," reads the Joint Statement following the phone call. The leaders expressed their expectation that the ceasefire would turn into a sustainable improvement of the security situation, for the benefit of the schoolchildren and for all civilians in the Donbas. "On the basis of a sustainable ceasefire, the leaders committed to personally stay engaged in the further implementation of the Minsk agreements," reads the Joint Statement. According to the presidential press service, during the phone talk President Petro Poroshenko called for immediate release of all Ukrainian hostages illegally held in captivity. As Ukrainian News Agency earlier reported, Olha Aivazovska, a representative of Ukraine in the political subgroup of the TCG, announced that Ukraine's representatives in the Trilateral Contact Group on resolution of the conflict in Donbas intend to initiate a ceasefire on the eve of September 1 at the next meeting of the group in Minsk on August 23.