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:
Yemen government says Houthi missiles kill four in port city
Yemen's government said Houthis fired six ballistic missiles at the Red Sea port of Mocha on Friday, killing at least four civilians.
Trump says he will soon declare Strait of Hormuz a US territory
US President Donald Trump said on Friday he would soon declare the Strait of Hormuz a US territory and urged Americans to accept slightly higher gasoline prices as the cost of preventing Iran from obtaining a nuclear weapon.
Race to reach trapped survivors offers hope in Colombia quake zone
Rescuers raced in Colombia on Friday to free four people from a collapsed hotel, a rare sign of hope nearly four days after one of the strongest earthquakes to hit the Andean nation in decades left hundreds dead or missing.
20 dead after Indonesia's magnitude-7.7 earthquake, rescuers say
At least 20 people have died after an earthquake of magnitude 7.7 and dozens of aftershocks struck off eastern Indonesia on Saturday, a rescue agency said.
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