Russia did act on rouble fall: Deputy Ulyukaev

Alexey Ulyukaev, a first deputy chairman at the Central Bank of Russia, confirmed Friday that the central bank had intervened to shore up the rouble.

Ulyukaev was reported as saying by Bloomberg, a news agency, that the central bank had sold a "significant" amount of currency to halt the rouble's slide on Thursday to Rb30.40, the lowest level since a new dollar-euro basket was introduced in February 2007.

Market analysts estimate the central bank sold between $3.5 billion and $4 billion of it