[UPDATE BELOW] We're getting reports that a taxi cab has exploded at 53rd and 7th Avenue. A tipster tells us: "The gas tank exploded... It was just in the right lane on Seventh Avenue at the light at 53rd Street. I was on Broadway and saw white smoke at first, then huge flames and the entire couple of blocks filled with black smoke. FDNY put it out but I think it took them a while to get there cause it was scorched. I don't think there was anyone inside, at least I hope not."

UPDATE: Another witness tells us that the cab engine starting spewing smoke, and the taxi driver vacated the vehicle. According to our source, "A cop opened the door and it exploded with flames." An employee at restaurant Brasserie Maison, located where the cab exploded, tells us, "There's a car on fire, that's all. Nobody got hurt. But I'm a really busy right now, I have to go." Cab fires: Good for the restaurant industry? Developing...

UPDATE: Brian at MostlyWeather has video of the fire—smoke entirely fills that stretch of Seventh Avenue!