Firefighters, police and environmental experts have responded to the New Haven Terminal, at 100 Waterfront Street in New Haven, where an underground fuel line is reported to be leaking.
Officials believe a line two inches underground ruptured and police said the substance is low-grade fuel oil.
Officials from the Water Pollution Control Authority, state Department of Environmental Protection and the Coast Guard have been notified.
Police said traffic should not be impacted because the scene is in a remote area.
