Kyle Knox , 23 , disappeared as he tried to climb the 4409-ft high Ben Nevis . He was last seen at start of route on Monday and did not return to his hotel . Londoner is believed to be alone and may not be an experienced climber . Large-scale searches underway in -7C blizzards and winds of up to 600m .
Kyle Knox , 23 , disappeared as he tried to climb the 4409-ft high Ben Nevis . He was last seen at start of route on Monday and did not return to his hotel . Londoner is believed to be alone and may not be an experienced climber . Large-scale searches underway in -7C blizzards and winds of up to 70mph .