Gov. Andrew Cuomo directed state regulators Monday night to investigate wastewater discharge that turned water at the base of Niagara Falls black over the weekend.

The governor asked the state's Department of Environmental Conservation to begin an immediate investigation into whether the city of Niagara Falls wastewater treatment plant violated any water quality standards.

Officers for the regulatory agency responded to a report of a black, foul smelling discharge in the Niagara River on Saturday between the American Falls and Rainbow Bridge.