A U.S. Navy crew was headed Friday afternoon to a newly formed island off the coast of North Carolina to determine if an object found there is a military device.

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The sandbar, known as Shelly Island, formed off Hatteras Island in the Outer Banks as little more than a bump in early April.

>> Related: New island forms off North Carolina coast

The object found on Shelly Island is heavily encrusted with marine growth, according to WTVD.

The Dare County Emergency Management blocked access to the island on Friday, while a military bomb disposal team investigated the object.

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Fulton County Sheriff Patrick Labat gives a tour of Fulton County Jail in  2023. (Natrice Miller/AJC 2023)

Credit: Natrice Miller/AJC