NEW YORK (MarketWatch) -- Russian equities declined on Monday, as falling commodity prices weighed on investor sentiment. The dollar-denominated RTS stock index dropped 4.6% to 1,096.68 points in recent trading. The decline was led by oil and gas as well as mining stocks. The ruble-denominated Micex stock index fell 3.06% to 1,109.31 points. In New York trading, the Market Vectors Russia ETF (RSX 23.12, -1.01, -4.19%) , which tracks the performance of the Russian stock markets, fell 4.1% to $23.13.