Bitcoin dropped 4.91% to $25,957 at 21:45 GMT on Thursday, losing $1,341 from its previous close.
Bitcoin, the world's biggest and best-known cryptocurrency, is down 18.4% from the year's high of $31,818 on July 13.
Ether, the coin linked to the ethereum blockchain network, dropped 3.57 % to $1,644.4, losing $60.9 from its previous close.
