Bitcoin dipped 5.16% to $33,849.47 at 18:00 GMT on Saturday, losing $1,842.99 from its previous close.
Ether, the coin linked to the ethereum blockchain network, dropped 6.26% to $2,262.06 on Saturday, losing $151.11 from its previous close.
Bitcoin, the world's biggest and best-known cryptocurrency, is down 47.8% from the year's high of $64,895.22 on April 14.
It has been less volatile in the past week but losses this month have been heavy at 38%, driven by growing regulatory pressures on the sector. It is trading at levels last seen in January and at roughly half its peak value.
(Reporting by Ismail Shakil in Bengaluru; Editing by Richard Chang) ((email@example.com; +91 8861175297; Tweet @ismail___s;))