Russia Investors Apprehensive David McGuffin reports that Russia's financial markets are in turmoil. The Central Bank has tripled interest rates up to 150 percent to protect the ruble. Investors are not pleased; the country's main stock index fell another 11 percent Wednesday. The turbulence could spell trouble for Russia's new reformist prime minister Sergei Kiriyenko. President Boris Yeltsin asserts that there will be no collapse of the markets.