An 84-year-old woman was killed in multiple-vehicle crash that left 10 Chicago police officers injured on Saturday night.

According to the Chicago Tribune, two police vehicles—a van and an SUV—collided with each other and then several other vehicles while en route to a call for assistance.

The officers and two civilians were transported to a nearby hospital where the elderly woman—Verona Gunn—was pronounced dead. The officers were treated for non-life-threatening injuries.