According to various reports, there is a fire going on at the Con Edison substation in DUMBO. One tipster who lives in the neighborhood told us it was caused by a transformer explosion, and said it "shook the whole house and the lights flickered." We'll update with more information as it comes in. Attempts to contact the FDNY's press office have been unsuccessful.
[UPDATE]: The fire has now been brought under control. According to Con Ed, there was one piece of equipment at the substation which caught on fire, though details of how it happened are not yet known. Since it's not a generation station, no customers were affected by the fire.