Norfolk helicopter crash: Four crew killed as US Air Force craft crashes into Cley marshland

An investigation is underway after four crew members were killed when a US military helicopter on a training mission crashed near the north Norfolk coast.

The HH-60 Pave Hawk, a derivative of the Sikorsky Black Hawk aircraft, plunged into marshland at Cley-next-the-Sea at about 6pm.

Emergency services have been working at the scene throughout the night with the help of military personnel and volunteers.

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