Oracle has held preliminary talks with TikTok's Chinese owner, ByteDance, and was seriously considering buying the app's operations in the US, Canada, Australia and New Zealand, the Financial Times has reported. 

Oracle was working with some US investors that already have a stake in ByteDance, including General Atlantic and Sequoia Capital, the newspaper reported.

The newspaper cited people briefed about the matter. 

ByteDance and TikTok did not have a comment on the FT report, while Oracle declined to comment. 

Reuters reported earlier this month that Twitter had approached ByteDance to express interest in acquiring the US operations of TikTok, while Microsoft was still the favourite to clinch a deal. 

The Financial Times said Microsoft has also seriously considered a bid to take over TikTok's global operations beyond the nations it outlined earlier in August. 

Microsoft is particularly interested in buying TikTok in Europe and India, where it was recently banned by the Indian government after border tensions with China, the newspaper said. 

But ByteDance is opposed to the idea of selling any assets beyond those in the US, Canada, Australia and New Zealand, according to the report. 

US President Donald Trump last week ordered ByteDance to divest the US operations of the video app within 90 days, ramping up pressure on the Chinese company over concerns about the safety of the personal data it handles.