(Bloomberg)--The iShares MSCI Emerging Markets Index dropped to a month low on concern the crisis in Ukraine will escalate before Crimea’s residents vote in a separatist poll. Russia’s Micex Index tumbled to the lowest since 2010.

The exchange-traded fund fell 1.8% to $38.19 at 4 p.m. in New York. The MSCI Emerging Markets Index declined 0.2% to 943.19. Ukraine’s UX Index led losses among the 94 world stock gauges tracked by Bloomberg, while the Micex sank 2%. Brazil’s Ibovespa erased earlier gains, approaching a bear market. The Shanghai Composite Index advanced 1.1% amid speculation the securities regulator will allow listed companies to sell preferred shares for the first time.

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