Burger King Corp.

Slumping fast food sales in US, Canada extend to Burger King

Restaurant Brands International said its profit jumped during the second quarter as Burger King's sales weakness in the U.S. was offset by strength overseas.

The Ontario company said Burger King's sales slipped 0.8 percent at established restaurants in the U.S. and Canada, following disappointing results from other restaurant chains.

"We did see some softness in the industry," said Daniel Schwartz, CEO of Restaurant Brands.

Schwartz declined to provide a reason for the softness, but other industry executives have cited weakening consumer confidence amid political and global uncertainty. Analysts have also noted that the increasing competition over...