(Photo: AP)

NEW YORK, Sept. 6 (Xinhua) -- US stocks closed mixed on Friday as investors digested Federal Reserve Chairman Jerome Powell's speech as well as major economic data.

The Dow Jones Industrial Average was up 69.31 points, or 0.26 percent, to 26,797.46. The S&P 500 rose 2.71 points, or 0.09 percent, to 2,978.71. The Nasdaq Composite Index fell 13.75 points, or 0.17 percent, to 8,103.07.

Powell said on Friday at an event in Switzerland that the trade tensions between the United States and China are weighing down companies' investment decisions.

He said uncertainty around trade policy is causing some companies to hold back on investment, according to reports from CNBC.

On the economic front, total nonfarm payroll employment rose by 130,000 in August, and the unemployment rate was unchanged at 3.7 percent, the US Labor Department said on Friday.

August's total nonfarm payroll employment is down from July's downwardly revised number of 159,000, and is lower than the Wall Street estimates of 150,000.