North American stock markets fell Friday as fears of revenge by Iran for the U.S. killing of a top general camouflaged the latest sign of weakness in the U.S. economy — decade-low manufacturing data.

The S&P/TSX composite index closed down 33.83 points at 17,066.12.

In New York, the Dow Jones industrial average was down 233.92 points at 28,634.88. The S&P 500 index was down 23.00 points at 3,234.85, while the Nasdaq composite was down 71.42 points at 9,020.77.

The Canadian dollar traded for US76.99¢ compared with an average of US76.97¢ Thursday.

The February crude contract was up US$1.87 at US$63.05 per barrel and the February natural gas contract was up 0.8 of a cent at US$2.13 per mmBTU.

The February gold contract was up US$24.30 at US$1,552.40 an ounce and the March copper contract was down US3.8¢ at US$2.79 a pound.