Huawei’s aspirations of breaking into the U.S. market took another major blow on this week, as a new report from CNBC claims six top U.S. intelligence chiefs are urging Americans not to use products made by the company due to alleged ties to the Chinese government. The news follows a move that saw AT&T back out of deal to offer Huawei’s upcoming Mate 10 Pro.

“We’re deeply concerned about the risks of allowing any company or entity that is beholden to foreign governments that don’t share our values to gain positions of power inside our telecommunications network,” said FBI Director Chris Wray.

Wray was joined by the heads of the CIA, NSA, and the director of national intelligence, CNBC reports.

“It provides the capacity to maliciously modify or steal information,” Wray added. “And it provides the capacity to conduct undetected espionage.”

The remarks from Wray come at a bad time for Huawei, which was recently caught courting fake reviews of its Mate 10 Pro on the eve of the device’s launch in the U.S. (You can read up on what the device has to offer right here.)

Huawei provided a statement to CNBC, saying it poses no security risks:

Huawei is aware of a range of U.S. government activities seemingly aimed at inhibiting Huawei’s business in the U.S. market. Huawei is trusted by governments and customers in 170 countries worldwide and poses no greater cybersecurity risk than any ICT vendor, sharing as we do common global supply chains and production capabilities.

Over the past few years, Huawei has become a global powerhouse in the mobile market. But the U.S. intelligence community has long been distrustful of the company, making it difficult for Huawei to break into the U.S. market. In 2014, Huawei was banned from bidding on U.S. government contracts, while politicians have previously accused the company of being an “arm of the Chinese government.”