Rue 21 says it could close even more stores

This would be on top of the 400 locations the clothing chain has already said will shut down.

Rue 21 is already closing six of its stores in Minnesota.

But more could be coming.

The teen clothing retailer officially filed for bankruptcy protection, it announced Monday. The first round of store closings (about 400 in total) that took place in April were part of the company's restructuring process, cutting out locations that weren't profitable.

But that may not be all. Rue 21 said it "may evaluate additional store closings" as things go forward here.

The goal is to become more efficient and make the company's financials stronger, CEO Melanie Cox said in the announcement.

Prior to any of this spring's closings, Rue 21 had 1,179 stores across the U.S., including 18 in Minnesota.

But the locations in Alexandria, Coon Rapids, Eden Prairie, Elk River, Mankato and Medford are all closing this month or next, which will leave a dozen scattered throughout the state.

Once again, a big retailer runs into money trouble

This is the latest large retailer dealing with definite or possible store closures. Others include:

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