One of the world’s biggest supermarket chains said it would drop several PepsiCo products to protest what it called unacceptable price increases, a rare public standoff between a grocer and food maker after more than two years of rising prices.

Carrefour, which operates thousands of stores across more than 30 countries, said it would stop selling Pepsi, Doritos and other products in France, Italy, Spain and Belgium. A spokesman for the French company said Thursday that it had decided to add notes to store shelves to explain the changes to customers.