FBI Director Christopher Wray (L) and CIA Director Mike Pompeo (2nd L) testify on worldwide threats during a Senate Intelligence Committee hearing on Capitol Hill in Washington, DC, February 13, 2018.

Six top U.S. intelligence chiefs told the Senate Intelligence Committee on Tuesday they would not advise Americans to use products or services from Chinese smartphone maker Huawei.

The six — including the heads of the CIA, FBI, NSA and the director of national intelligence — first expressed their distrust of Apple-rival Huawei and fellow Chinese telecom company ZTE in reference to public servants and state agencies.

When prompted during the hearing, all six indicated they would not recommend private citizens use products from the Chinese companies.

"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 networks," FBI Director Chris Wray testified.

"That provides the capacity to exert pressure or control over our telecommunications infrastructure," Wray said. "It provides the capacity to maliciously modify or steal information. And it provides the capacity to conduct undetected espionage."