Ukrainian President Petro Poroshenko has said that on Monday will start fight for victory in the second round of the presidential election.

"Starting from tomorrow I will start the fight in the second round," he said in a statement to journalists on Sunday evening.

He said that it is necessary to determine the rate that each of the voters will make during the voting in the second round of presidential election.

"Each of us must answer the important questions whether the country continues its path to the European Union and NATO or sit and wait for the Kremlin's permission to conduct a referendum," Poroshenko said.

Poroshenko said that Moscow stakes on a convenient candidate.

He said that in the second round, fate brought him together "with a puppet of [Ukrainian businessman Ihor] Kolomoisky."

"We will not give any chance to Kolomoisky," Poroshenko said.