In an exclusive BBC interview, Sundar Pichai hailed artificial intelligence as an "extraordinary moment" but said no company would be immune if bubble burst.

Sundar Pichai candidly acknowledged concerns about inaccurate answers generated by Google's models.

Potential bidders say they are frustrated to have been frozen out of talks on the future of the UK's biggest water utility.

The Competition and Markets Authority is taking the action following a review of online pricing and sales practices.

"We apologise to our customers and the Internet in general" the web infrastructure company said.