Two bipartisan lawmakers are demanding answers from Costco over its decision to continue selling Chinese-manufactured security products that have been linked to human rights abuses and cybersecurity risks.

In a letter dated Oct. 31, Rep. Christopher Smith (R-N.J.) and Sen. Jeff Merkley (D-Ore.) questioned the retail giant’s continued sale of Lorex security products, noting the company previously had ties to China-based company Dahua, whose products are restricted in the United States by the Federal Communications Commission (FCC).

Lorex is a former subsidiary of camera maker Zhejiang Dahua Technology, a China-based company that was added to the U.S. trade blacklist in 2019 owing to the Chinese Communist Party’s (CCP’s) treatment of Uyghurs and other predominantly Muslim ethnic minorities.

The U.S. Department of Commerce, in placing the company on the blacklist, said it and other entities “have been implicated in human rights violations and abuses in the implementation of China’s campaign of repression, mass arbitrary detention, and high-technology surveillance against Uighurs, Kazakhs, and other members of Muslim minority groups” in China’s Xinjiang region.

Additionally, the FCC last year banned the sale of new telecommunications and surveillance equipment made by Dahua, citing an “unacceptable risk” and national security concerns.