The check carried out at ships and units of Russia's Black Sea Fleet shown no losses of secret documents, said the source from one of Russian security ministries to RIA Novosti on Friday.
The check started on Wednesday right after statement of Valentina Nalivaichenko, the head of Ukrainian Security Service about BSF confidential documents allegedly found by Sevastopol residents and brought to the service branch.
"There were no loss, forfeit or shortage of secret files revealed", said the interviewee.
He confirmed, however, that Russian side received package of documents from Ukrainian Security Service. "Their authenticity will be defined", said the source.
According to Kommersant-Ukraina newspaper, Ukrainian Security Service turned over ten secret documents to Russian FSB on Thursday. Those files belong to Black Sea Fleet HQ and were stumbled across by Sevastopol residents. The question is 180 classified pages. In particular, such things were among found documents as "Instruction on preparation of combat vessels for cruises, tactical drills and navigation while on mission" and "Instruction on coastal observation plan".