Swimmers are being told to stay out of the water at three beaches in Anne Arundel County after tests show high levels of bacteria.
The Anne Arundel County Health Department announced Monday that Beverly Beach on the Chesapeake Bay near Mayo, London Towne at Arundel Road Beach and Upper Magothy Beach in Severna Park are closed.
Health officials said they weren't sure what caused the high readings but waterfowl, water temperature and tidal action can contribute.
The advisory will remain in effect until tests indicate acceptable levels.
Those who come in contact with the water are advised to wash with warm water and soap immediately.
For more information on the status of the beach advisories, visit the Anne Arundel County Department of Health.