Elon Musk met Iran's ambassador to the UN a day before he was made joint head of Donald Trump's new cost cutting department, the BBC's US partner CBS has confirmed.

Elon Musk recently met with Iran's ambassador to the U.N., Amir Saeid Iravani, according to two sources familiar with the meeting. The meeting took place at the ambassador's residence in New York. There's no indication that President-elect Donald Trump's national security transition team was aware of the meeting.

Many high-profile X users are leaving after Elon Musk's efforts to elect Donald Trump, adding to a new era of fragmented social media.

Bluesky has added 1.5 million users over the past week as former President Donald Trump’s election victory prompted users to flee X, the platform owned by Trump ally Elon Musk.

Bluesky is having a very good week as some users abandon Elon Musk's X after the U.S. presidential election. Elon Musk has certainly emerged victorious this past week, post-election. However, Musk and his social media platform X are not exactly winning on the mobile app charts.