This is Jamie McDonald from Gloucester. He's running across Canada to raise funds for a number of children's charities.
The incident happened yesterday after he arrived in the ski resort of Banff, Alberta.
He was beaten about the head and his bag containing his hard drive, wallet and camera was stolen.
Having spent a crazy day speaking to the police and the media, I wanted to update everybody who's been kind enough to read, share and care. My bag, including my possessions, priceless hours of footage of my journey across Canada and my wallet, amongst other things, has been found.I have been amazed at the response, from friends and strangers and from the British and Canadian media, both of which have helped spread my story. I wish the story didn't have to have an unfortunate incident in order to reach people, but I'm glad in a way because the more people that know about my journey, the more children it might be able to help. As the saying goes, every cloud has a silver lining and the additional donations as a result of people hearing about this are hugely appreciated.
As a child, Jamie suffered from a rare spinal condition known as syringomyelia, as well as a very weak immune system.
He began his attempt to cross Canada coast-to-coast in March 2013.
He's running in aid of Great Ormond Street Children’s Charity, SickKids Foundation and the Pied Piper Appeal, along with children’s hospitals throughout Canada.
The coast-to-coast run is the equivalent of more than 200 marathons in 275 days.
He'll become the first person in history to run it alone if he completes it. The challenges he faces include snow storms, -30°C temperatures, and grizzly bears, all while carrying a 30kg backpack.
You can donate to his appeal here.