The cause of death of two young children who were sleeping in their family's van was revealed to be carbon monoxide poisoning and not exposure to the cold as Detroit authorities first thought.

DETROIT, MI – The Wayne County Medical Examiner’s Office determined the two children found not breathing in a minivan outside Detroit’s Greektown Casino died of carbon monoxide poisoning, Fox 2 Detroit reports. Police originally thought the two children, Darnell Currie Jr., 9, and A’millah Currie, 2, froze to death on Feb. 10.

The government agency says the recalled boilers can release carbon monoxide (CO) due to delayed ignitions or component damage.

Carbon monoxide is an odorless, colorless gas that takes hundreds of lives each year, and makes even more people sick.

I don’t understand how you could have carbon monoxide when you’re in a car outside, so that’s kind of a puzzle to me.”

The two children who died in a car at a Detroit casino parking garage last month died from carbon monoxide poisoning

Two teenagers were found dead from suspected carbon monoxide poisoning inside a car in the north suburbs early Sunday morning, officials said.