No Swimming: Algae On River Flowing Into Lake Erie Prompts Warning

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TOLEDO, Ohio (WWJ/AP) - If you were thinking about celebrating this hot September weekend at a beach in neighboring Ohio -- you might want to go with "plan B."

Health officials in Ohio are telling children, pregnant women and people with certain medical conditions not to swim in the Maumee River, which flows through Toledo, because of an algae outbreak.

The river has turned unsightly shades of green the past few days, leading local health officials to issue a recreational advisory Thursday.

Algae blooms can produce toxins. Three years ago, blooms on Lake Erie contaminated Toledo's drinking water for more than 400,000 people for just over two days. But officials say the current algae outbreak on the river isn't affecting the drinking water.

Researchers think it is linked to a larger algae bloom on Lake Erie along with slow currents and high phosphorus levels in the river.