UPDATED | October 24 2015 7:23 PM

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STILLWATER, Okla. (AP/CBSDFW.COM) — Four people were killed and dozens injured after a car careened into a crowd at Oklahoma State’s annual homecoming parade.

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Stillwater police Capt. Kyle Gibbs said the woman’s sedan crashed into the unoccupied motorcycle of an officer who was working security at the route, then into the crowd of people. The driver of the car, 25-year-old Adacia Avery Chambers, was arrested on a DUI charge. Police say Chambers is a Stillwater resident.

The flag was lowered to half-staff at Boone Pickens Stadium Saturday afternoon before kickoff of the No. 14 Cowboys’ homecoming game against Kansas. Officials had considered postponing the game but decided to play it as scheduled and honor the victims.

After running out onto the field before the game, most of the Oklahoma State players knelt in prayer by the OSU sideline. The crowd in the football stadium observed a moment of silence for the victims.

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The Cowboys defeated Kansas 58-10.

Stillwater police are investigating the crash.

Those searching for family members who may have been victims can call the Stillwater PD clearing house at 405-372-4171 if they cannot reach their loved ones.

For more information head to CBS News.

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(©2015 CBS Local Media, a division of CBS Radio Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)