Kansas City, Kan. ? One person died and five others were hurt Friday morning after they were overcome by carbon monoxide fumes from a generator that was providing power to a home left without electricity by a storm, firefighters said.

Battalion Chief Kevin Shirley of the Kansas City, Kan., Fire Department said one of the five suffered life-threatening injuries. The person killed was identified as Wenceslas Lemus Catellanos Randolfo, 17.

The incident was reported at 5:30 a.m.

Violent weather in the area Thursday night had knocked out power in the neighborhood, leading occupants of the home to start a generator in the basement and leave it running, Shirley said.

“You should never bring anything running like that inside the home,” Shirley said. “If it’s not ventilated, carbon monoxide will build up, resulting in death or injury.”

Twelve people were inside the home at the time, he said.