Bitcoin tumbles below $10,000 for the 2nd time in less than 2 weeks

The price of one bitcoin has fallen below $10,000 for the second time in less than two weeks. 
Exchanges Bitfinex and Tether have reportedly been subpoenaed by the Commodities Futures Trading Commission regulator. 
You can track the cryptocurrencies price in real-time here>>Bitcoin has slumped more than 11% in the last 24 hours, falling below $10,000 per coin for the second time in less than two weeks as reports of cryptocurrency exchanges Bitfinex and Tether being subpoenaed by