BALTIMORE, Md. (WJZ)—Maryland Natural Resources Police say they will resume their search Monday for a boy who they say drowned on Sunday evening at the Patapsco Valley State Park.

Rescue crews responded to the Bloede Dam to search for a 21-year-old man who went missing while swimming. Police say they were unable to find him Sunday night.

Maryland Natural Resources Police say they area is posted with no swimming signs.

Further details surrounding the drowning are unavailable at this time.