UPDATE:  Chattanooga firefighters responded to a duplex fire shortly after 9:00 Thursday night in the 4700 block of Forest Wood Lane. Battalion Chief Chris Warren said a good portion of the right side of the duplex was engulfed in flames when the first firefighters arrived on the scene. 

An adult male resident told firefighters that he was inside the duplex when he saw the fire. As the man attempted to get out, he injured himself.  He was  transported to a local hospital with an injury to one hand.

Once the fire got into the attic, the flames quickly spread across the duplex, eventually breaking through the roof.It took the firefighters at least 30 minutes to get the blaze under control. 

Five fire companies initially responded to this fire.

An estimate on the dollar loss as not available and it is not known how many people lived in the duplex.  Chief Warren said no one appeared to be inside the left side of the duplex when firefighters arrived. 

The cause of the fire is under investigation. 

Chattanooga police and Chattanooga-Hamilton County Rescue also provided valuable assistance on the scene.

Chattanooga firefighters have been called to a fire on Forest Wood Lane tonight.

Fire crews arrived at the scene in the 4700 block shortly after 9 p.m.

A 911 dispatcher says minor injuries have been reported. 

The cause of the fire is unknown.

Stay with WRCBtv.com for updates to this story.