US STOCKS-Wall Street falls as Fed meets and Brexit vote looms
* May retail sales rise 0.5 pct vs estimated 0.3 pct
* Citigroup, JPMorgan among top losers on S&P
* Fed kicks off two-day policy meeting
* Indexes down: Dow 0.47 pct, S&P 0.42 pct, Nasdaq 0.39 pct (Updates to afternoon)
By Noel Randewich
June 14 (Reuters) - Wall Street fell on Tuesday as central bank policymakers weighed interest rates and the health of the U.S. economy and investors worried about an upcoming vote in Britain on whether to leave the European Union.
It was the fourth straight session of losses for the S&P 500 as the Federal Reserve began its two-day meeting to decide whether the U.S. economy has recovered enough to absorb a rate hike.
While traders have discounted a rate increase this month, they will parse Fed Chair Janet Yellen's speech at a conference on Wednesday for clues on the health of the economy and the trajectory of hikes.
Adding to the uncertainty, recent opinion polls indicated growing support for Britain's exit from the European Union, creating a rush by investors to safe-haven assets like gold and the yen. Continuación...