(QHA) -

Ukrainian President Petro Poroshenko has said in a meeting with a top U.S. official that there cannot be peace in Ukraine's eastern Donbas region until control is reestablished over the border with Russia.

Poroshenko was meeting with visiting U.S. Assistant Secretary of State Victoria Nuland and the Ukrainian president stressed the need for Ukrainian border guards to be allowed to return to all areas along the Russian border.

"Without restoring Ukrainian control over the border it is impossible to achieve a peaceful settlement," Poroshenko told Nuland.

Poroshenko also warned that areas in eastern Ukraine controlled by pro-Russian separatists faced a humanitarian disaster this winter if nothing can be done to change the current situation.

Gas, electricity, and food supplies must be resumed, Poroshenko said.