Officers are painstakingly searching for clues as to why a HH-60G Pave Hawk out on a military training exercise in Cley, north Norfolk, crashed into marshes, killing all four air crew members on board.
The search for clues is set to continue for "many days" as police prioritise the recovery of the bodies of the crew. ITV News' Nina Nannar reports from Cley on how the investigation is progressing.
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