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:

Omani navy rescues cargo ship crew after missile strike
UN 'deeply disturbed' by strike on Iran school that killed 160 children
സൗദിയിലെ റാസ് തനുറ റിഫൈനറി ലക്ഷ്യമിട്ട് ഡ്രോൺ ആക്രമണ ശ്രമം നടന്നതായി ഊർജ്ജ മന്ത്രാലയം
