Fire tears through Naperville apartment building

NAPERVILLE, Ill. (WLS) -- Investigators are working to determine what sparked a fire at an apartment complex in southwest suburban Naperville.

The blaze broke out around 8 p.m. Monday on the second floor of a duplex in the 800-block of Beaumont Drive at Brittany Springs Apartments.

Home video shows flames shooting from the roof of one building. A neighbor, David Lung, described the scene to ABC7 Eyewitness News.

"I was just watching the smoke billow up and it just, literally, you saw all of a sudden flames shoot up over the roof, almost instantaneously. It was smoke for about ten minutes, then we saw the fire," Lung said.

The fire was extinguished by around 10 p.m., but firefighters stayed on the scene to douse hot spots overnight.

There were no reports of injuries.