Twitter is in discussions to sell itself to Elon Musk and could finalise a deal as soon as this week, people familiar with the matter said, a dramatic turn of events just 10 days after the billionaire unveiled his $43bn bid for the social-media company.

The two sides met on 23 April to discuss Musk’s proposal and were making progress, though still had issues to hash out, the people said. There is no guarantee they will reach a deal.