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Published 09:42 7 Jun 2015 BST

In a press conference, New York governor Andrew Cuomo indicated that the escapees had used power tools which prisoners should not be able to access, in order to carry out their "sophisticated" escape by cutting through steel walls and beams.
Cuomo pledged to undertake a "thorough investigation" into the escape, which he described as "an elaborate plot".
https://www.youtube.com/watch?t=41&v=rD-8-yLEG6Q