Ukraine's federal parliament voted on November 10 to set November 29 as the date for local elections in the eastern city of Mariupol and the nearby town of Krasnoarmiisk.
The localities, which are on government-held territory in the turbulent Donetsk region, were supposed to participate in regional elections last month.
However, hundreds of polling stations in the localities did not open for the elections because of an unspecified "mistake in the ballots," the Interior Ministry said at the time.
Much of the surrounding Donetsk region and the neighboring Luhansk region are controlled by pro-Russian separatists.
The two self-declared separatist republics agreed last month that they would postpone their own elections until sometime next year.
The concession by the separatists was made after negotiations between Ukrainian President Petro Poroshenko and his Russian counterpart, Vladimir Putin, in Paris.
No date has been set for elections in the separatist-held regions.