The letter was sent ahead of Jessen-Petersen's visit to Belgrade, due on Monday. The UN Mission to Kosovo said on Saturday Tadic wrote that the power cut caused a humanitarian crisis which lasted for weeks.
Tadic writes that many Kosovo Serbs live in enclaves simular to the old ghettos in Central Europe and that they are denied the basic human rights. He says freedom of movement is not ensured, increasing their poverty and denying them the right to work, and that they live in constant fear.
Tadic says the ethnic cleansing of Serbs by means of arms and the burning of houses and churches has been replaced by a more subtle form of ethnic cleansing -- power cuts.
He says that depriving Serbs of power in the middle of winter, added to the disastrous conditions they live in, will make their exodus continue. He maintains that failure to resolve the crisis represents a tacit approval of ethnic cleansing.