Child playing with stove believed to have started fatal fire that killed 12, NY mayor says

Investigators believe the blaze, the deadliest residential fire to hit New York City in at least 25 years, was caused by a child playing with a stove, Mayor Bill de Blasio said.

Latest: Four children are among the 12 people killed in New York City's deadliest residential fire in decades.

Mayor Bill de Blasio said four other people are still fighting for their lives. He said first responders saved at least 12 lives.