The U.S. Department of justice launched an investigation over the possible manipulation of c the exchange rate of bitcoin during last year’s rally cryptocurrency of the Issuer the largest stablon Tether and exchange Bitfinex. This writes Bloomberg citing three anonymous sources.

Familiar with the situation sources told that the Ministry of justice conducts an investigation jointly with the Commission on trade in commodity futures of the USA (CTFC). However, it is unknown what interested Department: suspicious activity on Bitfinex or action of specific employees of the exchange and Tether Ltd. While the Ministry of justice and the CFTC, no one has been charged, the newspaper reports.

In January, the CTFC has begun to explore activities Bitfinex and Tether Ltd by sending representatives of both organizations the agenda with the subpoena. After this Tether Ltd has suspended the issuance of tokens USDT for two months.

The U.S. Department of justice also intends to figure out how to Tether Ltd releases new coins and why most of them passes through the Bitfinex team. According to Bloomberg, the representatives of the Tether and Bitfinex Ltd refused to comment on the situation.

Note, in October of abnormal growth of bitcoin on Bitfinex raised fears about the possible collapse of the Tether. In may, the U.S. justice Department initiated an investigation to determine the possibilities of manipulation of cryptocurrency traders.

ForkLog previously reported that during the investigation the representatives of the Paradise Papers have identified the relationship between company management Ltd and Tether cryptocurrency exchange Bitfinex.