SOUTH PORTLAND — Toys R Us announced late Tuesday it will close 20 percent of its stores, including possibly two in Maine.

The Babies R Us at Running Hill Road and Maine Mall Road, and the Toys R Us store in Bangor, are among the 180 stores that may close between early February and mid-April, Toys R Us Chief Executive David Brandon said in a letter posted on the company website.

The toy chain, with $5 billion in debt, filed for bankruptcy protection ahead of the 2017 holiday season. The company plans to remodel some stores by converting them into co-branded Toys R Us and Babies R Us stores.