The Toronto Stock Exchange's S&P/TSX composite index <.GSPTSE> fell 118.10 points, or 0.87 percent, to 13,478.31. It lost 2.7 percent on the week, pummeled by volatile oil prices and fears about slowing Chinese growth.

"I think the market now is confused and scared," said Marcus Xu, portfolio manager at M.Y. Capital Management Corp. "The TSX remains under lots of pressure from all these worry factors," he added, referring to China, the price of oil, and uncertainty over whether the U.S. Federal Reserve will choose to raise interest rates later this month.

Canada unexpectedly added jobs in August, but the unemployment rate rose to a one-year high as more people looked for work.

Job growth in the United States slowed in August, but the unemployment rate dropped to a near 7-1/2-year low and wages accelerated.

"At the end of the day, when you look at the data release this morning, there isn't a clear answer and if there's one thing the market doesn't like, it's uncertainty," said Patrick Blais, senior portfolio manager at Manulife Asset Management.

"The market's just having trouble reading the timing of the (Federal Reserve's) rate increase. I think that's just throwing the market off. There's a little bit for everyone, but at the end of the day, no one's happy."

Blais said the odds the Bank of Canada cuts rates have dropped heading into next week's meeting, but that domestic headwinds remain and improving trends were unsustainable.

The biggest drags on the index were Royal Bank of Canada (>> Royal Bank of Canada), which fell 1.5 percent to C$70.88, and Toronto-Dominion Bank (>> Toronto-Dominion Bank), which declined 1.3 percent to C$51.11.

The hefty and influential financials group retreated 1.2 percent, including six of the top 10 losers.

Despite less volatility in crude prices on Friday, energy stocks also performed poorly, down 0.7 percent. Canadian Natural Resources (>> Canadian Natural Resources Limited) lost 3.1 percent to C$27.44.

The mining sub-sector fell 5.3 percent.

In corporate news, BlackBerry Ltd (>> BlackBerry Ltd) fell 2 percent to C$9.66 after it said it will buy rival mobile software provider Good Technology Corp (>> Good Technology Corp) for $425 million.

Decliners outnumbered advancers by 177 to 65, for a 2.72-to-1 ratio on the downside. Nine of the 10 main sectors fell.

(Additional reporting by Solarina Ho; Editing by Matthew Lewis and Tom Brown)

By Alastair Sharp