Beijing: On September 28, Beijing accused the Trump administration of abusing "national power" by trying to ban TikTok. This comes as a federal court gave the video app's US operations a stay of execution.

A US government order had sought to ban new downloads of the Chinese-owned app from midnight (0400 GMT Monday) -- but allow use of TikTok until November 12, when all use would be blocked. 

According to reports, President Donald Trump claims the popular app poses a national security threat and harvests data for Beijing via its Chinese parent company ByteDance -- allegations the firm vehemently denies.

Describing the order as "bullying behaviour", Chinese foreign ministry spokesman Wang Wenbin said it was evidence of "abusing national power to unreasonably suppress other countries' enterprises".

Instead, the US should "provide a fair, just, open, and non-discriminatory business environment for companies around the world investing and operating in the country", Wang added.

China says Trump is strong-arming the company into giving up full ownership of a lucrative app -- with 100 million US subscribers -- to an American rival.

But late on Sunday a US federal court issued a temporary block on the order after TikTok's lawyers successfully argued it was a "punitive" ban motivated by politics rather than genuine security fears.

Details of the injunction remain sealed for now by the court in Washington.

The US squeeze on TikTok is one of a litany of issues souring relations between the rival powers, spanning tech, defence, human rights and contested seas.

US tech giants have also raised concerns over the precedent a ban could set for a free internet -- and the prospect of reprisals against American firms operating in China's vast market.