The Kansas Department of Health and Environment is cautioning the public about toxic levels of blue-green algae in several lakes.

The agency issued health warnings Thursday for all of nine lakes and part of another, saying water conditions are unsafe.

Officials say people, pets and livestock should not drink the water and should avoid swimming or wading.

The warnings are posted for Cedar Park Lake, Deanna Rose Farmstead Pond and South Park Lake in Johnson County; Brown County State Fishing Lake; Hiawatha City Lake; Chisholm Creek Park Lake in Sedgwick County; Memorial Park Lake in Barton County; Jewell State Fishing Lake in Jewell County; Lake Warnock in Atchison County; and part of Milford Reservoir.

A less serious advisory was also issued for Antioch Park Lake in Johnson County.