(KNZA)--A public health warning has been issued for the Hiawatha City Lake due to the presence of high levels of toxic blue-green alage.

The Kansas Department of Health and Environment announced Thursday that the lake is among three in the state that have been placed under " warning" status.

The agency says lakes under warning aren't closed, but that contact with the water can cause serious illness and should be avoided. 

Fish can be eaten as long as they are rinsed with clean water.  However, you should consume only the fillet portion and discard all other parts.       

KDHE will continue to monitor the lake and will provide updates as conditions warrant.