undertook

The same fixed-wing model can be configured for medical transport or passenger travel with up to five seats, and this June it undertook the first electric demonstration flight carrying passengers into New York's JFK airport.

Mr Edgley, originally from Grantham, Lincolnshire, documented the challenge extensively on social media, sharing videos of himself swimming in the "extreme" conditions and the recovery routines he undertook during his rests.

This year, his team undertook a study of just over 2,000 people, asking them various questions about AI.

Publishing house Penguin has said it "undertook all the necessary due diligence" before releasing The Salt Path, after a series of claims about the book's veracity.

"I am very confident in the assessment and skills of those officers and support them completely in the decisions they undertook," he said.