From the National Park Service:
On the morning of Sunday, November 25, a training mine containing no ordnance was discovered south of Salvo, near off-road vehicle ramp 23. The training mine was anchored in place by National Park Service Rangers until a U.S. Navy Explosive Ordnance Disposal team from Norfolk, Virginia arrived for retrieval. The training mine was safely removed from the beach shortly after 2:00 pm.