The Federation of Employers of Ukraine said delays at the border have cost Ukrainian exporters about $2.5 billion so far.
Demonstrators burned Russian packaged foods and other goods outside the Russian embassy in Kiev to protest the restrictions at the border, imposed by the Russian Customs Service, RIA Novosti reported Saturday.
"This was a symbolic action to show everyone that there are people in Ukraine who are ready to defend their rights," said Ruslan Tsekeli, who heads the activists group Nastup, the news service said.
Tsekeli contends Russia is using tighter restrictions at the border to pressure Ukraine into joining a Russia-Belarus-Kazakhstan trade agreement.
Kiev is scheduled to sign a free trade agreement with the European Union in November.
Minister of Economical Development and Trade Ihor Prasolov said the government in Kiev was considering filing a complaint with the World Trade Organization, but would wait until Monday before making a determination about that.
Another Ukrainian official, Deputy Prime Minister Yuriy Boyko, predicted this week high level talks would end the customs dispute by Monday.
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