"ByteDance let us know today they would not be selling TikTok’s US operations to Microsoft. We are confident our proposal would have been good for TikTok’s users, while protecting national security interests," Microsoft said in a statement.

In August, US President Donald Trump threatened to ban TikTok and WeChat by September 15 if they are not sold to a US company. This triggered a lawsuit from TikTok owner ByteDance and sparked further diplomatic tensions with China.

ByteDance was in talks with Microsoft and Oracle on the possible sale of TikTok.

Fox News reported on Sunday that ByteDance had chosen Oracle to be its US tech partner in the US.