McDonald's has fired back at Taco Bell after the Mexican fast food chain unveiled ads featuring guys named Ronald McDonald who just love the restaurant's new breakfast offerings.

On Friday, McDonald's took to Facebook with a picture of its Ronald McDonald clown petting a chihuahua.

The caption read, "Imitation is the sincerest form of flattery."

AdWeek said the response could be interpreted as McDonald's dismissing Taco Bell as a "cute, harmless little competitor."