TOPEKA, Kan. (AP) — High levels of toxic algae are closing several Kansas lakes heading into the Fourth of July holiday. The Kansas City Star reported that lake management officials have posted warning signs prohibiting recreational activities at four lakes. They are the Marion Reservoir in Marion County, Old Herington City Lake in Dickinson County, Logan City Lake in Phillips County and Memorial Veterans Lake in Barton County. The Kansas Department of Health and Environment also has also issued health advisories for South Lake in Overland Park and Lowell Reservoir in Jewell County. Under an advisory, fishing and boating may be safe. But the department still strongly discourages swimming or any other direct contact with the water. A health advisory at Cedar Bluff Reservoir in Trego County was lifted this week.