@kpixtv: Police in Woodland, California, say they are investigating a traffic collision involving a vehicle operated by federal immigration authorities and a pedestrian Tuesday morning. NorCal Resist, an immigrant advocacy organization, posted footage of the collision to their social media pages, showing a man, Antonio Moreida, being knocked to the ground. Moreida, who didn’t suffer major injuries in the collision, told CBS News Sacramento that he went to the neighborhood after hearing reports of a U.S. Immigration and Customs Enforcement operation with the hopes of documenting it and alerting nearby residents. CBS News Sacramento has made multiple attempts to reach out to the U.S. Department of Homeland Security for comment but has not received a response.