Twitter said it had taken the action "in the interest of preventing others from being inspired to commit violent acts".
The US Commerce Department said it was amending an export rule to "strategically target Huawei's acquisition of semiconductors that are the direct product of certain US software and technology."
The companies said Samsung will use Xilinx’s “Versal” computing chips, which will help with a technology called beamforming that lets 5G gear handle more wireless data than previous generations of networks.
Communications masts in two English cities have been set alight as false news of a link between 5G infrastructure and the coronavirus takes hold.
British officials says it is very dangerous to spread conspiracy theories which link 5G mobile telecommunications masts to the spread of the novel coronavirus.
Britain decided to give Huawei limited access to build 35 percent of the less risky radio access network parts of its new high-speed mobile network, in a setback for the US, which has been pushing allies to ban the Chinese company.
The South Korean firm also promoted the head of its network equipment business, which analysts said got a lift from a US campaign to convince allies to bar Huawei from their networks.
Huawei's revenues jumped 24.4 percent on-year to $86.2 billion and its profit margin increased 8.7 percent, despite what it called a US campaign to isolate the company globally.
Although Islamabad has always supported Kashmir's UN-sanctioned Right to Self Determination, it has also been wary of Kashmiri nationalism that envisions a state free from both India and Pakistan.
"You might have had trouble Tweeting, getting notifications, or viewing DMs. We're currently working on a fix, and should be back to normal soon", the company said in a tweet, which did not give further details.
One elementary school in Serbia's Nis city has banned mobile phones. Students, parents, and the school staff debated and agreed to introduce the rule in order to make life at school more constructive.
State-run telecoms monopoly announced Cubans will be offered full internet access for mobile phones beginning this week.
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