Daredevil walks tightrope across gorge by the Grand Canyon

American daredevil Nik Wallenda has become the first man to cross a Grand Canyon-area gorge on a tightrope, completing his latest record-breaking feat in under 23 minutes.

The 34 year old, who walked across the Niagara Falls last year, prayed constantly as he crossed a tributary gorge of the US landmark on a quarter- mile long high wire some 1,500ft above the Little Colorado River.