Huawei has filed a lawsuit against the US government over a ban that restricts government agencies from using its products.
In a statement, the firm said the US Congress has “failed to produce any evidence to support its restrictions”.
The US has placed bans on government agencies using Huawei products over concerns they pose a risk to national security.
It has also been lobbying allies to shun the Chinese telecoms firm.
Huawei has gone on the offensive after months of intense international scrutiny.
“The US Congress has repeatedly failed to produce any evidence to support its restrictions on Huawei products. We are compelled to