Police investigate a serious crash involving multiple vehicles on Route 173 near Siedschlag Road in Spring Grove Friday evening. | Photo: Alex Vucha / Lake and McHenry County Scanner

A three-vehicle crash left two people hospitalized, including one with serious injuries, Friday evening in Spring Grove, police said.

The Spring Grove Police Department and Spring Grove Fire Department responded around 8 p.m. Friday to Route 173 near Siedschlag Road in Spring Grove.

Spring Grove Police Chief Michael Niedzwiecki said the incident involved three vehicles.

A preliminary investigation showed a 2011 Mazda 3 rear-ended a 2010 Ford Edge as they were both traveling eastbound Route 173.

Police investigate a serious crash involving multiple vehicles on Route 173 near Siedschlag Road in Spring Grove Friday evening. | Photo: Alex Vucha / Lake and McHenry County Scanner

The Mazda lost control, went into the oncoming lane and struck a 2018 Toyota Camry that was traveling westbound on Route 173, Niedzwiecki said.

Two drivers involved were transported by ambulances to Northwestern Medicine Hospital in McHenry.

Niedzwiecki said the Mazda driver sustained serious injuries in the collision. According to fire department radio traffic, that victim was reportedly not breathing and not conscious.

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The second victim, who was driving the Toyota, was hospitalized with non-life-threatening injuries. She told Lake and McHenry County Scanner that the driver who caused the crash had been swerving and tailgating vehicles just prior to the crash.

Police investigate a serious crash involving multiple vehicles on Route 173 near Siedschlag Road in Spring Grove Friday evening. | Photo: Alex Vucha / Lake and McHenry County Scanner

The driver of the Ford did not require transport to a hospital.

The Major Crash Assistance Team (MCAT), which consists of members from the Cary, Harvard, Johnsburg, McHenry, Spring Grove, and Woodstock police departments, was activated to assist with the crash investigation.

Route 173 was shut down for several hours while MCAT was conducting its investigation.

Niedzwiecki said additional information will be released upon the conclusion of the MCAT investigation.