At 0749 GMT, the rouble was 0.03 percent stronger against the dollar at 62.31 and had lost 0.06 percent to trade at 73.81 versus the euro.

The dollar index versus a basket of six major peers strengthened and hit 93.457 overnight, its highest since Dec. 22, when the benchmark 10-year Treasury yield surged above 3 percent.

"Emerging markets were hit by a sharp rise in US Treasury yields and generally pessimistic sentiment spreading towards the group," Aton brokerage said in a note.

But the rouble was supported by prices for oil, Russia's major export, which hit $79.47 per barrel on Tuesday before slipping to around $78 on Wednesday amid ample supply.

Brent crude oil, a global benchmark, was down 0.57 percent at $77.99 a barrel, a small correction after a long rally in recent months.

Russian stock indexes were mixed.

The dollar-denominated RTS index was up 0.2 percent to 1,1181 points. The rouble-based MOEX Russian index was 0.07 percent lower at 2,335 points.