U.S. stock index futures indicated a lower open on Friday as traders digested the release of key inflation data and looked ahead to next week's meeting of the U.S. Federal Reserve.
Dow futures slipped about 60 points, while S&P and Nasdaq futures fell 7 points and 13 points, respectively.
The U.S. Consumer Price Index rose 0.2 percent in August, more than the expected increase of 0.1 percent. Consumer sentiment is set to come out at 10:00 a.m. Markets will focus on what the data means for the Fed, but any action at its meeting next week has largely been written off.
In oil markets, Brent crude traded at $45.72 a barrel on Friday, down 1.87 percent, while U.S. crude was around $43.01 a barrel, down 2.1 percent.
In Europe, the pan-European Stoxx-600 index was 0.67 percent lower on Friday. In Asia Japan's Nikkei closed 0.70 percent higher on Friday. Markets in China remained closed for a public holiday.
—CNBC's Patti Domm contributed to this report