Two children who appeared to have frozen to death while living in a van in Detroit last month actually died of carbon monoxide poisoning, officials said.

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.

The Wayne County Medical Examiner's Office released the official cause of death of two children who died while sleeping in a van with family in Detroit.

Two children living in a van were initially suspected to have died from hypothermia. An autopsy reveals death by carbon monoxide poisoning.

Two Detroit children who recently died in a van in below-freezing temperatures were victims of carbon monoxide, not exposure to cold weather, authorities said Wednesday.

The Medical Examiner said carbon monoxide poisoning is what led to the tragic death of two children in a van at a Detroit casino parking garage last month.

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.