"When it becomes necessary, I have no problem with continuing talks we started in Minsk. But there are certain basic principles: the Minsk agreements that were made with the participation of the Russian Federation, should be implemented to the letter," Poroshenko said.
He stressed that the priority condition is a cease-fire.
"We must ensure a cease-fire at last. Shots shall not be heard in the Ukrainian sky and in the Ukrainian land," he said.
Commenting on the statement of the first President of Ukraine Leonid Kravchuk on the need for talks with Putin face to face, Poroshenko said that he does not lack in communication with the Russian president. "We have no lack of communication with Russian President Vladimir Putin. My last personal contact with him was very long. It lasted 18 hours," the head of the Ukrainian state said.