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On the floor next to May lay a large blue and red circle with a white stick.

They didn't think he could walk with a white stick because he couldn't hold it.

Mr Szell uses a white stick and says it is hard to navigate around the boards, and he often hurts his hand on them and has tumbled over one.

"The delays have gone haywire.... I fear it's going to be a white stick situation."

The network’s night-vision drone cameras have showed hundreds of migrants walking across the border, each one appearing as a luminous white stick slowly advancing across a dark screen.