One person was killed and five were injured in a New York apartment fire on Monday that forced some occupants to jump from a burning three-story building, fire officials said. The blaze broke out at about 1:45 a.m. at the Brooklyn structure and was extinguished a half-hour later, a spokesman for the New York City Fire Department said. In an attempt to save residents trapped in the building, a tenant pulled a mattress from his apartment onto the nearby sidewalk to break the falls of jumping residents, the spokesman said.