Elon Musk's nightmare: Google's robot army turning evil

London: Technology entrepreneur Elon Musk is worried that internet giant Google could create an evil robot army by accident.

The claims are made in Elon Musk, a new biography of the Tesla and PayPal entrepreneur, the Independent reported.

Google has been buying up robotics companies, including Boston Dynamics, a firm that makes terrifying, running robot dogs. It isn't clear what the company's ultimate aim for the robots is, but whatever they're for, the robots are likely to run on Google-developed artificial intelligence.

The 43-year-old entrepreneur said that AI is human's biggest existential threat, comparing it to "summoning a demon."

However, Musk's friend Larry Page, CEO of Google, argued that it is likely that at some point robots and computers will be able to "reason, think and do things better than we can."

Musk and Page are close friends, and Google's investment wing has poured money into Musk's projects. The two often hang out together, along with Google's cofounder Sergey Brin, to discuss ambitious plans about the future of transport and the internet, the book claims.