“…it appeared there were sparking wires underneath the manhole, potentially caused by salt that was put down as a result of the weekend snowstorm…FDNY officials say firefighters evacuated a building containing six apartments…Several other buildings, including a laundromat across the street, also had to be evacuated.”

Buildings evacuated in Elmhurst, Queens after manhole fire leads to elevated carbon monoxide levels – ABC7 New York (abc7ny.com)