The official said the concentration of Russian troops along Ukraine-Russia border has not changed for past six months. It's about fifty battalion tactical groups, involving 53,000 people, Turchynov said. According to him, Russian president Putin is now trying to negotiate with the West, preparing to possible talks with the United States at the UN General Assembly session in New York. Turchynov added that the Russian provocations in Ukraine would continue and “we have to be ready to repel attacks at any moment.”