"We call upon the Republic of Bulgaria to abandon such practices which are intended to restrict the political rights of minorities in the country and are fundamentally contrary to the European rule-based system," Muftuoglu said on Wednesday.
In the statement, Muftuoglu claimed that the measure was intended to hinder ethnic Turkish Bulgarians from voting, adding that Turkey would "continue to provide the most ideal conditions for all Bulgarian citizens" living in Turkey to vote in the elections.
Muftuoglu also dismissed the Bulgarian Foreign Ministry's allegations that Turkey was offering "financial incentive" to voters, stressing that Turkey does not "interfere in the internal affairs of any state."
According to Bulgarian media reports, Turkey's Labor and Social Security Minister Mehmet Muezzinoglu publicly endorsed Bulgaria's pro-Turkey Democrats for Responsibility, Solidarity and Tolerance (DOST) party earlier this month.
Never miss a story again — sign up to our Telegram channel and we'll keep you up to speed!