Sbarro Inc., the pizza chain owned by buyout firm MidOcean Partners, filed for bankruptcy protection after missing interest payments on its debt.

Sbarro LLC, the pizza restaurant chain, on Monday filed for bankruptcy protection for the second time in less than three years, after struggling with too much debt and lower customer traffic in the malls that house many of its restaurants.

Sbarro and more than 30 affiliates filed for Chapter 11 protection from creditors with the U.S. Bankruptcy Court in Manhattan.