The US dollar rose against the Canadian dollar on Monday afternoon, hovering near the highest level since early August.
The US dollar was last seen up 0.35% to CA$1.40432.
US 10-year treasury yields slipped slightly to 4.969%.
Comex gold futures for December edged down 1% to $4,380.30 per ounce.
Oil prices tumbled Monday afternoon on cautious hopes that President Trump might talk with Iranian President Masoud Pezeshkian, who will be in New York this week for the United Nations General Assembly, several outlets reported.
West Texas Intermediate October futures benchmark fell 4.8% to $95.51 per barrel. November Brent crude futures edged down 3.6% to $100.13 per barrel.