The incident in which a group of supporters of Rukh of New Forces party leader and former Odesa region administration head Mikheil Saakashvili broke across the border at the Shehyni checkpoint on Sunday should be assessed not in political but purely in legal terms, Ukrainian President Petro Poroshenko said.

"This incident doesn't require political comments. We will comment on it exclusively in legal terms," Poroshenko said during a conference dealing with the development of rural medicine in Kyiv on Monday.

The principle of the inviolability of Ukrainian borders is a matter of national security, and "I don't care who violates the state border, be it the fighters in the east or politicos in the west: there should be clear legal responsibility for this," he said.

Speaking about the actions of the armed border guards, who did not use their weapons against the people breaking through the checkpoints, Poroshenko said, "I believe the border guards [...] acted in the right way by not using weapons, which they were absolutely entitled to use," he said.

"Let politics be left to politicians and crimes to law enforcement officials, prosecutors, and courts. These norms and this format should be in effect in a state ruled by law," he said.

Poroshenko also suggested that "this man [Mikheil Saakashvili] will be breaking into Georgia as stubbornly as he tried to get into Ukraine."