Four firefighters are being held hostage in a house in Suwanee, Georgia.

Gwinnett County, GA, authorities say five firefighters were initially taken by a gunman as they responded to a medical emergency, though one was later released to move the fire truck from in front of the house.

A source tells FOX News that the gunman was apparently upset because his house is in foreclosure and the utilities were turned off.  The source says he made the 911 call to lure firefighters to the scene and take them hostage.

Police have the entire neighborhood blocked off right now and SWAT teams are surrounding this home.