The search for a missing 19-year-old swimmer near Great Falls, Va. will resume Tuesday on the heels of an extensive air, ground and water search Monday.
News4 Northern Virginia Bureau reporter David Culver was on the scene Monday as Montgomery County, Fairfax County and National Park Service officials scoured the area for the missing 19-year-old man.
They received a call for several people in the Potomac River just before 2 p.m. Monday. Fire crews rescued three people, but a fourth person went under water.
Stay with NBCWashington.com and News4 for more on this developing story.