The Daily News says no injuries have been reported, and fireboats are currently battling the "massive, smoky fire" under a Harlem River bridge. A Metro-North spokesman said the cause of the fire has not been determined. Northbound trains are stuck in Grand Central and southbound trains are being held in the Bronx. Officials are currently talking about setting up shuttle service for financiers and others who otherwise would find themselves stranded in their pieds-a-terre.