Tech billionaire Elon Musk has claimed his Neuralink company has successfully implanted one of its wireless brain chips in a human.

Axar.az reports that in a post on X, formerly Twitter, he said "promising" brain activity had been detected after the procedure and the patient was "recovering well".

The company's goal is to connect human brains to computers to help tackle complex neurological conditions.

Several rival firms have already implanted similar devices.

"For any company producing medical devices, the first test in humans is a significant milestone," said Professor Anne Vanhoestenberghe of King's College London.

"For the brain chip implant community, we must place this news in the context that whilst many companies are working on exciting products, there are only a few other companies who have implanted their devices in humans, so Neuralink has joined a rather small group."