Burger King got a boost from the return of its "Chicken Fries." Parent company Restaurant Brands International Inc. said Monday sales rose 7.9 percent at Burger King locations in the U.S. and Canada during the second quarter. The company attributed the increase to factors including the popularity of its "two for $5" deal, ongoing restaurant renovations and the return of its Chicken Fries.

McDonald's last week said sales fell 2 percent in the U.S. as promotions failed to meet expectations. After taking Chicken Fries off the menu in 2012, Burger King had said last year it was bringing back the long, deep-fried piece of chicken as a limited-time offer in response to customer demands. The campaign was so successful the company brought them back this year.

Restaurant Brands CEO Daniel Schwartz said Chicken Fries are profitable as well because they have a high gross margin and restaurants sell a lot of them. They are positioned as a snack or meal and cost around $3.

-- Associated Press