WYOMING, Minn. » A Minnesota city is suing six makers of sanitary wipes, saying their "so-called flushable wipes" are clogging sewer systems.

The Star Tribune reports the lawsuit from the city of Wyoming says flushable wipes stay intact long enough to pass into sewer lines and wastewater treatment plants, causing thousands or millions of dollars in damage.

Kimberly-Clark is one company named in the lawsuit. In an email to the newspaper before the lawsuit was filed, the company said it’s invested in developing technologies that deliver wipes that are truly compatible with wastewater systems.

Kimberly-Clark declined comment on the lawsuit Friday. Another referred questions to Dave Rousse, president of the trade group Association of the Nonwoven Fabrics Industry, who said any sewer problems are being caused by non-flushable wipes being flushed inappropriately.