The U.S. Federal Communications Commission said on Friday it had adopted final rules banning the sale or importation of equipment deemed to pose a national security risk to the U.S.

The action, as required under a 2021 law, would affect Huawei Technologies, ZTE Corp and Hytera Communications, among others, according to a statement from the FCC.

"Today, the FCC takes an unprecedented step to safeguard our networks and strengthen America’s national security," Brendan Carr, the FCC's commissioner, tweeted on Friday.

"Our unanimous decision represents the first time in FCC history that we have voted to prohibit the authorization of new equipment based on national security concerns," he added.