? Police are investigating a chlorine leak that took place at the Hillview Reservoir near the Yonkers Raceway Wednesday morning.

Emergency crews rushed to the site just off the New York State Thruway and Central Park Avenue where the leak was reported. City officials say there is a leak inside the building and that the fire department is trying to locate and fix it.

Air quality tests were performed outside the building, but came out negative. Officials say firefighters are expected to remain at the scene for some time.

Officials say there is no contamination to the water supply and no evacuation planned. Individuals have been allowed back inside the building where the leak was reported.