Authorities confirmed that two people were killed and at least 20 others were injured after a serious car crash in Lincoln, Nebraska during the Americruise event on Sunday. Lincoln police said that two vehicles collided at an intersection and the force from the crash sent both vehicles into a crowd of bystanders who’d gathered to watch the annual Memorial Day event. The Americruise event attracts motorists to Lincoln each Memorial Day weekend to show off their cars and cruise the streets.

Those killed in the accident included two young women in their early 20s, who were both riding in one of the vehicles during the crash. Lincoln Police Capt. Max Hubka said their vehicle was struck by another, and added that one of the injured is in critical condition.

The Lincoln Police Department said in a statement that they “offer their condolences to the family and friends of those that were killed as a result of this incident. The department will work tirelessly to determine what occurred and hold those responsible for this tragedy accountable. This is an ongoing investigation. We do not believe, nor is there any evidence, this was an intentional act.”  Police are asking for help from eyewitnesses or video or photo evidence of the crash.

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