Burger King Worldwide reported its highest quarterly growth in North America same-restaurant sales in two years, driven by the reintroduction of Chicken Fries and strong sales of the BBQ Bacon Whopper burger.
The company, which is acquiring Canadian coffee chain Tim Hortons, said North America same-restaurant sales rose 3.6 percent in the third quarter.
Global same-restaurant sales rose 2.4 percent.
Burger King reported a loss of $23.5 million, or 7 cents per share, for the quarter ended Sept. 30 compared with a profit of $68.2 million, or 19 cents per share, a year earlier.
Excluding items, the company earned 27 cents per share.
Revenue rose 1.4 percent to $278.9 million.
Analysts had expected the company to report earnings of 27 cents a share on $282 million in revenue, according to a consensus estimate from Thomson Reuters.
In late August, Burger King announced plans to acquire Tim Hortons, a Canadian chain that sells coffee and donuts.
Burger King's global comparable store sales were expected to rise 2.40 percent, according to a consensus estimate from Consensus Metrix.
—CNBC's Katie Little contributed to this report.