Chinese tech workers told not to travel to US 'unless it's essential' after Huawei exec arrested

Technology researchers in China have been ordered to not travel to the US unless it is absolutely necessary, amid rising tensions between the two countries. Staff working in sensitive tech sectors were given the warning following the arrest of a Chinese tech executive in Canada, a source told the South China Morning Post. Workers at a research agency were also told to remove any sensitive data from laptops, mobile phones and other devices if travel to the US was essential. The warning comes after a similar order from US tech giant Cisco to some of its employees, which asked them the to any non-essential travel to China. Cisco has since said the email to its employees was "sent in error."