In a public statement Petersen again called on Kosovo Serbs to take part in the elections, but he did not comment on Tadic's request to make it possible for Serbs to take control of police, judiciary and school authorities in municipalities where they are in the majority three months after the elections.
UN Mission in Kosovo spokesperson Mathilde Henneke said that UNMIK could not accept any conditions and that it was against Kosovo's partition or cantonisation.
Addressing reporters after talks with UNMIK first deputy chief Lawrence Rossin, Kosovo President Rugova dismissed Tadic's conditions, while Rossin said it was good that Tadic had called on Serbs to go to the polls.
Kosovo Serbs are divided over participation in the elections scheduled for October 23 - some of them have supported Tadic's call, while others, supporting other politicians in Belgrade, are still opposing participation in the elections.
The Serbian Radical Party has requested launching a procedure to replace Tadic over his proposal.