Burger King is telling customers to go to McDonald's as part of a new deal.

If customers go within 600 feet of a McDonald's location, they can place an order for a one-cent Whopper on the Burger King app.

The deal is meant to promote Burger King's recently revamped app, which now offers mobile ordering.

Burger King has a new deal that requires customers to go to McDonald's.

On Tuesday, the fast-food chain announced that it was "turning more than 14,000 McDonald's into Burger King restaurants."

In fact, Burger King is debuting a McDonald's-themed deal. If customers go within 600 feet of a McDonald's location, they can order a Whopper for one cent via the revamped Burger King app. The deal starts Tuesday and runs through December 12.

"If a guest is inside one of these geofenced areas and has the new BK App on their device, the app will unlock the Whopper sandwich for a penny promotion," Burger King said in a press release. "Once the 1¢ Whopper sandwich order is placed, the user will be 'detoured' away from McDonald's, as the app navigates them to the nearest Burger King restaurant for pick up."

Read more: Burger King is forcing customers to go to McDonald's for one-cent Whoppers. Here are 7 of the weirdest deals and ads in recent fast-food history.

Burger King recently relaunched its app, allowing customers to place orders via mobile. McDonald's has more than 14,000 locations across the US. Burger King has about 6,600 fast-food locations.

The deal provides an explanation for a seemingly bizarre Burger King tweet on Tuesday morning: "brb going to McDonald's."

Burger King has been dabbling in some unusual promotions recently, such as launching a flame-grilled dog treat called the Dogpper.

Last week, the chain posted a string of nonsensical tweets that seemed to be simply a random string of letters and numbers. Later, Burger King said the gibberish tweets had been an effort to promote the return of its mini cinnamon rolls.