Kansas health officials have issued a warning for people and animals to stay out of a north-central lake because of high levels of toxic blue-green algae.

The Kansas Department of Health and Environment on Friday placed Old Herington Lake in Dickinson County under a toxic algae warning. The agency also said a previous warning for Barton County’s Memorial Park Lake remains in place.

The warnings mean people, pets and livestock should stay out of the lakes and should not drink their water.

Toxic algae advisories remain in place for Lake Warnock in Atchison County, and Logan City Lake in Phillips County. Boating and fishing are allowed, but direct contact with the water is discouraged for people and animals.