Four people were found dead in a New Hampshire home on Christmas Day of suspected carbon monoxide poisoning, officials said.
The four adults were found dead in the Wakefield home around 4:20 p.m. after authorities were contacted to conduct a welfare check, the state fire marshal and police said.
“While the investigation is active and ongoing, investigators currently believe the victims died as a result of carbon monoxide poisoning,” the fire chief and the heads of the Wakefield Police and Fire Departments said in a news release.
More than 400 people die each year in the United States from carbon monoxide poisoning unrelated to fires, the Centers for Disease Control and Prevention reports on its website.
The colorless and odorless gas can come from electricity generators, furnaces, vehicle exhaust and other sources.
State Fire Marshal Sean P. Toomey emphasized the importance of working carbon monoxide detectors in homes in Wednesday’s statement.
Wakefield is a town of about 5,000 residents in eastern New Hampshire, near the Maine border.
This article was originally published on NBCNews.com