Wichita ? Kansas health officials have added a northeast Kansas lake to a list of lakes that are unsafe for wading, swimming and water skiing because of high levels of a toxic blue-green algae.

The Wichita Eagle reports the Kansas Department of Health and Environment added Milford Lake to the list on Thursday.

Others on the list include Cheney Lake in western Sedgwick County, Santa Fe Lake in Augusta, Memorial Park Lake in Great Bend, Meade State Lake in Meade County and Warnock Lake in Atchinson County.

Blue-green algae contains a toxic that is harmful to people and animals. Officials say people who are exposed to it often experience difficulty breathing, intestinal problems and skin irritation.