The Chinese telecoms firm Huawei is suing the United States for excluding it from government contracts.
The firm argues a law passed last year is unconstitutional.
In a statement on Thursday, the company said it had filed a lawsuit in the district court in Texas, calling for the ban to be overturned.
From Washington, Daniel Ryntjes reports:
US, Ukraine discuss post-war reconstruction as Russia pummels grid
Ukrainian and US officials met in Geneva on Thursday for talks on post-war reconstruction despite a deadlock in peace negotiations with Russia, which pounded infrastructure across Ukraine with drone and missile strikes overnight.
Israeli fire kills three people in Gaza as truce deal staggers
An Israeli airstrike killed two Palestinians in the northern Gaza Strip on Thursday, the territory's health officials said, and the Israeli military said it killed a rebel who posed a threat to its forces in the south of the enclave.
Cuban forces kill 4 exiles who attacked from Florida speedboat
Cuban forces have killed four exiles and wounded six others who sailed aboard a Florida-registered speedboat on Wednesday and opened fire on a patrol, the government said at a time of heightened tensions with the US.
Hong Kong court overturns China critic Lai's fraud conviction in rare legal victory
Pro-democracy media tycoon Jimmy Lai's fraud conviction and prison sentence were overturned by a Hong Kong court on Thursday, in a surprise legal decision that comes soon after Lai was jailed for 20 years on a separate national security charge.
Hillary Clinton to testify in congressional Epstein probe
Former US Secretary of State Hillary Clinton is due to testify behind closed doors on Thursday to a congressional committee investigating the late convicted financier Jeffrey Epstein, though it is not clear how much new information will come to light.
