Police hunt 'Bonnie and Clyde' pair in Yellowstone Park
They are supposed to model themselves on Bonnie and Clyde - the outlaw couple who robbed their way across America during the great depression.
The authorities say that they are searching Yellowstone National Park, in the US states of Wyoming and Montana, for John McCluskey and Casslyn Welch.
McCluskey fled from a prison last month.
Rajesh Mirchandani reports.