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:
Russian ballistic missiles kill at least five in Ukraine's Kyiv, spark fires
Russian ballistic missiles killed at least five people and injured over two dozen more in Kyiv early on Thursday, authorities said on the Telegram messaging app, damaging buildings and leaving parts of the Ukrainian capital without power.
Kenya tourist helicopter crash kills seven
Seven people, including five Americans, were killed on Wednesday when the tourist helicopter they were flying in crashed in Kenya's Samburu county.
US, South Korea to cut length, scope of military drills after Trump order
South Korea and the United States will cut short annual joint military drills to five days from 11 and scale back some field training, the allies said on Wednesday, after President Donald Trump ordered a substantial reduction in US participation.
Central African Republic gold mine collapse kills at least 100
At least 100 people were killed when a low-tech artisanal gold mine collapsed in the Central African Republic on Tuesday, a senior official at a local mining association said.
Israeli airstrike kills nine Palestinians at Gaza police station
An Israeli airstrike killed nine Palestinians at a police station in Gaza on Wednesday, medics said, two days after US envoy Jared Kushner ended a trip to the region that failed to push forward Donald Trump's plan to end the war in the enclave.
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