North American markets fell on renewed fears about a global economic slowdown and difficulties in the U.S. and China reaching a trade deal.
The S&P/TSX composite index closed down 8.95 points to 15,703.36.
In New York, the Dow Jones industrial average was down 220.77 points at 25,169.53. The S&P 500 index was down 25.56 points at 2,706.05, while the Nasdaq composite was down 86.93 points at 7,288.35.
The Canadian dollar traded at an average of US75.27¢ compared with an average of US75.82¢ on Wednesday.
The March crude contract was down US$1.37 at US$52.64 per barrel and the March natural gas contract was down US11.1¢ US$2.55 per mmBTU.
The April gold contract was down US20¢ at US$1,314.20 an ounce and the March copper contract was up 0.80 of a cent at US$2.83 a pound.