Trading in shares of Twitter was halted after the stock spiked on reports that Elon Musk would proceed with his US$44 billion ($77bn) deal to buy the company after months of legal battles.
Musk offered to buy the San Francisco company at US$54.20. Shares jumped nearly 13 per cent to US$47.95 before trading stopped.
Bloomberg News reported on Tuesday that Musk made the proposal in a letter to Twitter, according to people familiar with the case who were not identified.
Musk has been trying to back out of the deal for several months after signing on to buy the social media platform in April. Shareholders have already approved the sale. Musk claimed that Twitter under-counted the number of fake accounts on its platform, and Twitter sued when Musk announced the deal was off.