A four-alarm fire gutted one home and damaged others in Brooklyn early this morning. Five residents—three adults and two children—have non-life-threatening injuries, and fire officials believe the blaze is suspicious.

The fire started around 4:45 a.m. at 1312 Glenwood Avenue in Ditmas Park. According to NBC New York, "The blaze broke out on the porch of a house... The fire, at a home undergoing renovations, quickly spread throughout the structure and another house."

About 170 firefighters were on the scene and the fire was put out after two hours.

Ditmas Park Corner reports:

"On the other side of the destroyed home, the couple who lives at 1316 Glenwood woke up to the sound of the fire — the husband says he looked out the window, which overlooks Glenwood, and saw the fire on the porch, then woke his wife, calling 911 as they ran out of their house. As they stood and watched firefighters try to dampen their neighbor’s home, smoke billowed into their own, and they watched in shock, grateful nobody was seriously hurt."

The wife said, "I don’t think we’ll be living in this house for a while."

Fire Commissioner Daniel Nigro said the fire was suspicious, apparently due to its size, and NBC New York added, "Neighbors [said] that it's the second porch fire set in the area in recent weeks."