Canada's main stock index extended losses on Wednesday after two top lenders reported disappointing quarterly earnings, while U.S. debt deal uncertainty also weighed on investor sentiment.

At 14:33 a.m. ET (13:33 GMT), the Toronto Stock Exchange's S&P/TSX composite index was down 129.18 points, or 0.64%, at 20,016.83.

(Reporting by Johann M Cherian in Bengaluru; Editing by Rashmi Aich)