According to police, a vehicle drove through a barricade into a crowd, prompting an officer to fire his weapon. According to a Facebook post, the neighborhood was expecting up to 3,000 kids for a trick-or-treating event. According to Omaha Police Chief Jay Leavitt, initial reports indicate that no children or residents were seriously injured. The suspect was taken to Nebraska Medical Center in critical condition, where additional crowd control measures are in place. This is a developing story. We will update with more information as it becomes available. Download our apps today for all the latest coverage. Get the latest news and weather delivered straight to your inbox.