TORONTO -- North American markets closed lower, unable to build on Friday's rally as concerns about Greece's debt problems bubbled to the surface.
The S&P/TSX composite index was down 17.38 points at 15,152.64 as oil prices drifted lower.
The Canadian dollar fell 0.13 of a U.S. cent to 82.58 cents.
In New York, markets were mixed as the Dow Jones industrial average, which bounded ahead 267 points Friday in its biggest advance since early February, was 85.94 points lower at 18,105.17.
The S&P 500, which posted a solid 28-point advance on Friday, also declined, down 10.77 points at 2,105.33, while the tech-heavy Nasdaq fell 9.98 points to 4,993.57.
On the commodity markets, the June crude contract lost 14 cents to US$59.25 a barrel and the June gold contract fell $5.90 to US$1,183.00 an ounce.
