This from Minas Klikas:

We had about 6-7 concrete trucks rolling after midnight . Was controlled with a full still response at 200 W. Jarvis, an Ozinga Ready-Mix yard.

Late Sunday evening, DPFD responded to several concrete trucks side-by-side that were fully engulfed in fire, with fire threatening power lines and close to a building. Quick action with multiple heavy streams by the Red Shift brought the incident under control.

Multiple Ozinga concrete trucks were destroyed by fire at 200 Jarvis in Des Plaines, IL 12/23/18

Des Plaines FD photo