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Futures off lows amid data

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U.S. stock index futures indicated a lower open on Friday as traders eyed the release of housing starts and building permits and kept an eye on developments in foreign markets.

May housing starts declined 0.3 percent, while building permits rose 0.7 percent.

The pan European Stoxx 600 Index was up by 1.01 percent on Friday.

On June 23, the U.K. will go to the polls to vote on whether to stay in or leave the European Union, and some of the tension in markets could end if a Brexit vote is rejected.

On Thursday U.K. lawmaker Jo Cox died after being stabbed and shot, and campaigns on both sides of the referendum were temporarily suspended.

Investors in the U.S. also digested remarks made by St. Louis Fed President James Bullard, in which he said only one rate hike is needed through 2018.

"An older narrative that the Bank has been using since the financial crisis ended has now likely outlived its usefulness, and so it is being replaced by a new narrative. The hallmark of the new narrative is to think of medium- and longer-term macroeconomic outcomes in terms of regimes," Bullard said.

In Asia, Japan's Nikkei closed 1.07 percent higher on Friday. In China, the Shanghai Composite closed 0.43 percent higher.

In oil markets, Brent crude traded at $48.36 a barrel on Friday, up 2.48 percent, while U.S. crude was at around $47.13, up 1.99 percent.

—CNBC's Patti Domm and Steve Liesman contributed to this report.