An ex-Royal Marine has scaled Mount Everest in his bid to complete the world's longest triathlon - eight months after he set off from Dover.

Mitch Hutchcraft also swam the Channel and cycled 12,000km from France to India where he then ran Kathmandu, all before taking on the tallest mountain on Earth.

In an extraordinary feat of human perseverance, the 31-year-old reached the 8,849m peak of the Himalayan mountain in the early hours of Sunday.

The adventurer - who has rowed across the Atlantic and cycled through America as training for the 'defining trip of my life' - has been pushing himself to the extreme in order to raise money for a mental health charity dedicated to veterans.

'Since September the 15th, I have swam 35km across the English channel, cycled 11,921km through 19 countries to sea-level in India, ran 875km to Kathmandu, trekked 360km to Everest Base Camp, and climbed to the highest point on earth,' he said.