The U.S. Commerce Department on Monday placed 28 Chinese public security bureaus and companies — including video surveillance company Hikvision and seven other companies — on a U.S. trade blacklist over Beijing's treatment of Uighur Muslims and other predominantly Muslim ethnic minorities.

Those added to the so-called Entity List include the Xinjiang Uighur Autonomous Region People's Government Public Security Bureau, 19 subordinate government agencies and eight commercial firms, according to a Commerce Department filing.

The companies include some of China's leading artificial intelligence firms such as SenseTime Group Ltd., and Megvii Technology Ltd., which is backed by Alibaba, as well as Hikvision, formally known as Hangzhou Hikvision Digital Technology Co. Ltd., Zhejiang Dahua Technology, IFLYTEK Co. Xiamen Meiya Pico Information Co., and Yixin Science and Technology Co.