BROOKLYN - Fire officials are investigating a blaze at a Brooklyn matzo bakery.Officials say the fire broke out around 5 a.m. Monday at a warehouse on Kent Avenue. Fire officials say it wasn't easy to locate the blaze, but they eventually found it in the cellar.The fire quickly spread, officials say, and gutted three floors of the warehouse. According to officials, a nearby yeshiva was spared from most of the damage.Officials tell News 12 Brooklyn that no one was injured in the blaze.