NSA hits back at allegations it spied on Fox News host

The US National Security Agency (NSA) has hit back at allegations by Fox News host Tucker Carlson that it is spying on him to force him off air.

On Monday Carlson, a long-time critic of President Joe Biden, said a government whistle-blower had told him the NSA was monitoring him for "political reasons".

The NSA denied he was a "target", saying it deals with foreign threats.

Fox News has not commented publicly on its host's claim.

In response to a question about Carlson's comments, White House spokesperson Jen Psaki said the NSA "focuses on foreign threats and individuals who are attempting to do us harm on foreign soil".

"Beyond that I would point you to the intelligence community," she added.