Four Young Children Killed in Pensacola, Florida, House Fire

Four young children died in a house fire early Thursday morning in Pensacola, Florida, after neighbors noticed smoke pouring out of the home, officials said.

The youngest child was an 11-month-old girl, Escambia County spokeswoman Joy Tsubooka told NBC News. Also killed were a 3-year-old girl and two boys, ages 5 and 11.

The siblings were pulled from the back of the home, but did not survive, according to NBC affiliate WPMI.

A mother and her 14-year-old daughter managed to escape with no injuries, Tsubooka said.

The first call came in just before 5:30 a.m., and crews arrived within seven minutes. Fire crews found the home engulfed in flames. There were no working smoke detectors inside, officials said.

Neighbors told WPMI that they first noticed smoke around 12:30 a.m. and believe the fire started in the water heater. A cause was still being investigated.