Five people in Grand Prairie, including one child, were taken to the hospital for carbon monoxide poisoning Sunday night.
Emergency crews were called to the home in the 900 block of Windbrook Drive.
Grand Prairie firefighters say a family was cooking on a charcoal grill in their garage and when they were finished they brought the grill inside to help warm up the house, instead the family succumbed to carbon monoxide poisoning.
Five people were taken to Baylor Medical Center in Dallas, including one child. Two paramedics were treated at the scene for CO poisoning after they walked into the home.
The initial symptoms of CO poisoning are similar to the flu but without a fever.
Anyone who believes they may have CO poisoning should leave the house, get fresh air immediately and call paramedics.