Elon Musk says his deal to buy Twitter for $44 billion is ‘on hold’ – for now, at least.

On Friday, Musk tweeted that he wanted “more details” on a report that fake accounts or bots make up less than 5% of active Twitter users.

Musk has previously said that getting rid of bots and spam would be a top priority once he takes over.

Musk’s announcement sent Twitter’s stock price tumbling 20% early Friday morning.