(CNN) A woman who says she was the victim of sex trafficking in 2012 and 2013 at multiple hotels in Oregon and Washington is suing six major hotel chains in federal court, saying they neglected trafficking happening "openly on hotel properties" and failed to intervene "to continue earning a profit."

"Rather than taking timely and effective measures to thwart this epidemic," the suit said, "defendant hotels have instead chosen to ignore the open and obvious presence of sex trafficking on their properties, enjoying the profit from rooms rented for this explicit and apparent purpose."

The suit, filed Monday in US District Court in Portland, names Hilton Worldwide Holdings, Inc., Wyndham Hotels & Resorts, Marriott International, Choice Hotels Corp., Extended Stay America and Red Lion Hotels Corp., as defendants.

Hilton Worldwide Holdings said the hotel property where the suit alleges the trafficking took place is independently owned and operated, but issued a statement saying, "Hilton condemns all forms of human trafficking, including for sexual exploitation. As signatories of the ECPAT [formerly End Child Prostitution and Trafficking] Code since 2011, we are fully committed, in each and every one of our markets, to protecting individuals from all forms of abuse and exploitation."

"We condemn human trafficking in any form," Wyndham Hotels & Resorts said in a statement. "Through our partnerships with the International Tourism Partnership, ECPAT-USA, Polaris Project and other organizations that share the same values, we have worked to enhance our policies condemning human trafficking while also providing training to help our team members, as well as the hotels we manage, identify and report trafficking activities."

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