US restrictions on Chinese telecoms giant Huawei are having a ripple effect across the tech industry.Read more
US President Donald Trump's administration is considering putting restrictions on Hikvision, the Chinese video surveillance company, the New York Times reported, citing unnamed sources.
The report said the administration is considering limits to the firm's ability to buy American technology, which would effectively place it on a US blacklist.
Hikvision is the world's largest supplier of video surveillance technology.
Last week, the US added Huawei to a list of companies that American firms cannot trade with unless they have a licence.
Hikvision shares were more than 4% lower on the day.
BBC North America technology reporter Dave Lee says the move could have a "massive impact" on security.
The US and China are trying to hammer out a trade deal. But will an agreement end their rivalry?