At around 5:30 Wednesday morning, paramedics were called to a home on the 1000 block of Bridle Path Drive. The caller said they were feeling sick and something was wrong.
When crews arrived to the home, they found a male who was having an "obvious medical emergency," according to a release from Gwinnett Fire Lt. Eric Eberly.
A Haz Mat unit was called and extremely high levels of carbon monoxide were detected. Fire crews determined the cause was a generator that was running inside the closed garage. The generator was being used to run a small heating device since the power had been cut off to the home.
An adult female and a teenage boy were evaluated and treated at the scene. All three were then taken to .