COMSTOCK TOWNSHIP, Mich. — Authorities say they’re working to determine how five teenagers killed in a fiery September crash in southwestern Michigan ended up in the car, which was stolen more than a year earlier from Detroit.

The Kalamazoo County sheriff’s department announced Friday it’s closed the traffic-related portion of the investigation, saying an “inexperienced teen driver” who died in the crash lost control of the car in Comstock Township while going 114 mph (183 kph).

Investigators determined the 2012 Dodge Charger was stolen from Detroit in May 2016. The department said, however, there’s “no evidence to suggest that any of the teenagers involved in the crash had any knowledge the car was stolen.”

The department is working with Detroit police and others to determine how the car ended up in the Kalamazoo area.