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 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 who appeared to have frozen to death while living in a van in Detroit last month actually died of carbon monoxide toxicity, officials say. The causes of death for 2-year-old A'millah Currie and 9-year-old Darnell Currie Jr.