People on and off the social media platform have been raising concerns about the direction Twitter is going in under its new billionaire leader.

As part of his shake-up of the platform, Mr Musk began rolling out plans to allow users to buy blue-tick verified status for $8 per month. The move raised concerns that Twitter would be swamped with fake accounts.

A US regulator says it is watching events at Twitter with "deep concern" after the platform's top privacy and compliance officers reportedly quit.