This from Max Weingardt,

The incident was at 2773 Skokie Valley Road in Highland Park. A private ambulance caught fire.
Highland park FD Engine 33

Max Weingardt photo

Firefighters extinguish ambulance fire

Max Weingardt photo

Highland Park FD Ambulance 32

Max Weingardt photo

Lake Forest FD Engine 421

Max Weingardt photo

Firefighters extinguish ambulance fire

Max Weingardt photo

private ambulance that caught fire

Max Weingardt photo