Five people made it out of a burning building in Cincinnati early this morning, thanks to some quick thinking teens.

The fire started around 3:00 a.m. in a building at 501 Poplar Street , near Foote Avenue in Bellevue. Two teenage boys were driving by, saw smoke and flames and woke up everyone inside the building. Firefighters say the smoke detectors did not go off because smoke never actually reached the detectors.

The teens are credited with saving the lives of a woman, her three grandchildren and another man plus a pet dog. The woman, Barb Woodall, owned a hair salon on the first floor of the building and she lived in an apartment on the second floor. The man lived in an apartment on the first floor.

There was an explosion as the owner of the building and her three grandchildren were trying to escape. All four suffered minor burns and injuries on their legs and feet. They were treated on the scene.

Four different fire departments were called in to help battle the fire because of the size of the fire and the heat.

The building was destroyed. The cause of the fire is not yet known, but fire officials say it was possibly something electrical.