(Neola, Iowa) – A family dog traveling with the family, alerted them to a dangerous build-up of suspected carbon monoxide. The incident happened as the family was traveling in an SUV on Interstate 80, near Neola. Soon after, the father of three children in the vehicle smelled the fumes and when he looked back, saw the children were lethargic. A two-year old traveling in the vehicle was unresponsive, but his eyes were open.

The family pulled over onto the shoulder and called 911. Law enforcement arrived within minutes. All three of the children, ages 2, 4 and 6, were at the hospital Tuesday night. The incident remains under investigation.