DARBY (AP) - Authorities say four firefighters were hurt while battling a blaze that damaged three homes in suburban Philadelphia.

The blaze broke out shortly before 5:30 p.m. Wednesday in Darby.

Fire Chief Bob Childs says crews encountered heavy smoke and fire in the basement of one of the homes. He says conditions rapidly deteriorated and two members quickly left the building.

The four firefighters were taken to hospitals with injuries that Childs says aren't life-threatening.

Three homes suffered smoke and water damage due to the blaze. It's unclear how many people were displaced.