Huawei sues US government over product ban

Huawei has filed a suit against the US 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 that they pose risk to national security.
It has also been lobbying allies to shun the Chinese telecoms firm.
The US, Australia and New Zealand have blocked local companies from using Huawei to provide technology for their 5G networks.