Officials say downed wires may have sparked a fire that ruptured a gas line and knocked out power to hundreds of residents in a New York City suburb. The series of events began when a power line fell on a car around 1 a.m. Tuesday in Mamaroneck. Officials say when firefighters arrived, the car burst into flames that spread to two other vehicles. WCBS-TV (http://cbsloc.al/163UltY ) reports that while putting out the flames, firefighters discovered a natural gas line had ruptured. That caused another fire. Firefighters were letting the natural gas fire burn to prevent a possible explosion.