The Non-Commercial Partnership of Operators of Rolling Stock, which unites small owners of rolling stock, is concerned by the situation involving admission into Russia of freight cars of Ukrainian origin acquired by Russian companies, the Interfax news agency reports.

"Our customs authorities are requiring all declarants to provide additional documentation justifying the customs value of rolling stock and sending documents about the origins of products to Moscow for examination. For temporary admission of cars into Russia, customs officers are demanding security payments equal to their cost," said the partnership’s Deputy Chairman Denis Semenkin.

According to estimates by the partnership, about 500 new freight cars traveling to Russia had accumulated at the Topoli-Solovey border crossing as of Friday, awaiting customs clearance.

As reported, Russia’s Federal Customs Service of Russia introduced stricter inspection of goods coming from Ukraine on August 14.