A massive fire at two vacant homes overnight in Jersey City, New Jersey, left several firefighters injured and neighbors homeless, officials said. Hot spots were still burning Thursday morning, hours after the three-alarm fire erupted and sent six firefighters to the hospital,

Flames erupted in a three-story building in Jersey City overnight, quickly spreading to a next-door building and injuring a half-dozen of the firefighters who responded to the scene, authorities say.

City officials say the flames broke out in vacant building. As CBS News New York's Christine Sloan reports, there had been previous complaints made about the building.