TikTok's algorithm - the technology that determines what users see in their feed - will be copied and retrained using US user data as part of a deal to secure the app's future in the country, BBC reported.

A White House official said on Monday that TikTok's recommendation system will be audited by tech giant Oracle, and operated by a new joint venture involving US investors in order to meet requirements for the app's sale.

It comes after President Donald Trump said a deal to prevent the app's ban in the US, unless sold by its Chinese parent company ByteDance, had been reached with China's approval.

The BBC has approached ByteDance and TikTok for comment, according to BBC.