Blue-green algae have potentially been spotted in another area of Wabigoon Lake.

Late last month, the Northwestern Health Unit (NWHU) said there were reports of blue-green algae in the Larosn Bay and Maple Road areas near Dryden.

In an update, the NWHU says the algae have been spotted in the Flat Rock area too and as a result, the Flat Rock and Sandy Beach swimming areas are closed until further notice.

In a prepared release, the NWHU says, "The blooms are being tested to see if they are blue-green algae and until the results are known, Northwestern Health Unit (NWHU) asks the public to be cautious and treat it as though it is blue-green algae."

Blue-green algae, or cyanobacteria, are microscopic organisms that are naturally present in lakes and streams. They are usually present in low numbers but can rapidly increase in warm, shallow, undisturbed surface water that gets lots of sun.

Blooms often make the water look blue-green or olive-green, or like green pea soup or turquoise paint.

Some blue-green algae produce toxins and can pose a health risk to people and animals when they are exposed to them in large amounts.

Health may be impacted if large amounts of surface scum or water containing high levels of blue-green algae toxins are swallowed, come in contact with the skin, or when airborne drops containing toxins are inhaled while swimming, bathing, or showering.

If contact does occur wash with soap and water or rinse thoroughly with clean water to remove algae.