Google is searching for ways to reassure investors after a mistake led to a drop in its share price.

An advert designed to show off the company’s new Artificial Intelligence (AI) bot, known as Bard, showed it answering a query incorrectly.

Shares in parent company Alphabet sank more than 7% on Wednesday, knocking $100bn (£82bn) off the firm's market value.

In the promotion for the bot, it was asked about what to tell a nine-year-old about discoveries from the James Webb Space Telescope.

It offered the response that the telescope was the first to take pictures of a planet outside the earth's solar system, when in fact that milestone was claimed by the European Very Large Telescope in 2004 - a mistake quickly noted by astronomers on Twitter.