Authorities believe carbon monoxide poisoning caused the deaths of three people found in a western Pennsylvania home this week, but investigators have yet to determine what led to the deadly exposure.

Poor ventilation also increases the risk for carbon monoxide poisoning. "In the winter everybody closes everything up to keep the cold air out which keeps the CO inside," Taylor said.

The National Fire Protection Association says heating equipment is a leading cause of fires in U.S. homes, leading to ...

As the dreaded winter storm approaches, North Texans need to stay on alert for a silent killer: carbon monoxide poisoning.

AAA Texas announced some winter safety tips and reminded drivers of the dangers of carbon monoxide poisoning. Drivers are ...

Three found dead in a western Pennsylvania home apparently died from carbon monoxide poisoning — just the latest deaths this winter linked to the deadly, odorless gas.

ASPINWALL (KDKA) -- Carbon Monoxide can be a silent killer, especially in the winter when most exposures happen according to ...