CHICAGO (AP) — Chicago Mayor Rahm Emanuel is reacting to reports Lake Erie has became tainted with a toxin that prevents water consumption by calling for a summit of Canadian and U.S. mayors. He says a meeting is needed to discuss ways of protecting and preserving the Great Lakes.

In a statement, Emanuel says what happened in Toledo, Ohio, where thousands were forced to stop drinking tap water for more than two days, is a reminder that much must be done to protect the lakes. They provide drinking water in Chicago and many other communities in the United States and Canada.