Restaurant Brands International has reported another set of solid results for the second quarter, fueled by the strong performance of Burger King.

The company’s system-wide sales grew 6.4 per cent to $12.7 billion during the quarter ended June 30, driven by a 2.9 per cent increase in net restaurant growth and 3.8 per cent uplift in comparable sales.

Burger King led the growth with what management described as a “standout performance”. The chain’s system-wide sales soared 8.2 per cent despite some closures, while comparable sales grew by a higher 8.6 per cent.

Tim Hortons saw a flat quarter, with system-wide sales up only 0.4 per cent and comparable sales up 0.1 per cent. Popeyes Louisiana Kitchen suffered a 3.1 per cent decline in system-wide sales and a 5.1 per cent drop in comparables.

Firehouse Subs improved sales by 7.5 per cent, but mainly thanks to new restaurant openings as comparable sales inched up only 0.7 per cent. 

The international segment, which operates all four chains outside the US and Canada, posted a 10.7 per cent increase in system-wide sales, including a 5.5 per cent improvement in comparables.

On the bottom line, net income from continuing operations surged 150 per cent to $665 million.

“These results show the benefits of our diversified portfolio and that the strategy we outlined is working,” said CEO Josh Kobza.

“Burger King’s performance is a great example of what’s possible when you invest in the fundamentals and execute well – an approach we’re applying across all of our brands,” he added.