UPDATE: All parties have been located and units are clearing the scene.

Original story below…

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KINGSVILLE, MD—A Wednesday evening rescue operation is under way at Gunpowder Falls State Park.

At just before 7 p.m., emergency crews were attempting to rescue three people who were lost at the park and potentially trapped by the terrain.

Crews are attempting to locate the individuals and a helicopter is assisting with the search.

There has been no word on any injuries.

[Image via Joppa-Magnolia Volunteer Fire Company]