Russia is humiliating Belarus and is trying to put Ukraine in unacceptable ultimatum-like conditions, Mykhailo Podoliak, adviser to the head of the President's Office, said on Sunday.

"The manipulation of the Russian side with the negotiation process is obvious. Russia is simply humiliating Belarus by using it. Russia is trying to put Ukraine in unacceptable ultimatum-like conditions, which we have long and categorically refused," he said in a comment distributed on Sunday. "But at the same time, they are trying to tell the world that, supposedly, they are the most ready for negotiations, arrange an obvious performance called "We are going to Gomel" and ... begin to destroy our infrastructure with already heavy bombing and large-scale shelling of residential areas with cruise missiles," he said.

According to him, "with such a dirty behavior of the Russian side, even in the topic of negotiations, one can definitely count on an even greater negative reaction from the West and even greater sanctions packages. To the total exclusion of Russia from any international communications. Since everyone knows perfectly well what the negotiations should be like in the current conditions."

"Agreed format, agreed place, real content and a fair result. This is possible if Russia stops putting on its manipulative performances around the negotiations," Podoliak said.