KANSAS CITY, Mo. — Three men died and another man was left in critical condition after carbon monoxide poisoning Saturday morning, according to the Kansas City Fire Department.

At 6:50 a.m., KCFD was called to a house at 1018 Fuller Avenue for a reported carbon monoxide call.

KCFD says that three men between the ages of 20 to 40 were found dead inside the home. Another man between ages 30 and 40 was left in critical condition and taken to the hospital.

Early investigation showed that a generator used indoors may have been the cause of CO poisoning. Authorities say that is true.

“There were almost 11 hundred parts per million of carbon monoxide in the house, so to give you some sort of indication, we have an action level at nine parts per million, so it was through the roof,” KCFD’s Public Information Officer Michael Hopkins said.

Last month, three people died from carbon monoxide poisoning less than a 10-minute walk away from the house on Fuller. 

The cause was from a generator used inside the house. 

“Don’t run gas-powered combustion engines in your house, no matter how small,” Hopkins explained. “I’ve run calls in the past, where somebody fired up a gas-powered power washer in their basement to clean their concrete, and you walk in, and it is the same thing: eight or nine parts per million.” 

According to KCFD, the neighborhood has a large number of Spanish-speaking families. 

The fire department plans to partner with other local organizations on carbon monoxide education and outreach efforts for the Spanish-speaking community in Kansas City. 

“Starting Monday, in conjunction with the Kansas City Police Department and our outreach program, we will be reaching out to Telemundo KC, which is now in the area, and as many organizations as we can to try to get this information out to our Spanish-speaking community and make sure that everyone has the same information and is educated on it.”

Hopkins says utility assistance programs are available for people turning to generators in the winter months to stay warm. 

“The first thing I would suggest is to go to the city’s 311 site. There are resources on there for utility assistance. They can help you get with a community organization that can help you keep utilities on so you don’t have to use a generator,” Hopkins said. 

The KCMO Health Department offers free carbon monoxide detectors. For more info, you can click here.