Jews in one Ukrainian city were were sent notes "indicating that they have to identify themselves as Jews," U.S. Secretary of State John Kerry said Thursday.
"In the year 2014, after all of the miles traveled and all of the journey of history, this is not just intolerable, it's grotesque. It is beyond unacceptable. And any of the people who engage in these kinds of activities -- from whatever party or whatever ideology or whatever place they crawl out of -- there is no place for that."
All parties at international talks on the Ukraine crisis Thursday unanimously condemned anti-Semitism and other forms of religious intolerance, Kerry said.
Also, members of the Russian Orthodox church in Ukraine were recently threatened that they would be attacked in the coming days by members of the Ukrainian Orthodox Church, Kerry said.
CNN could not immediately confirm the reports.