Several people were being treated on the scene, where people were enjoying the Gallup Intertribal Ceremonial Centennial Celebration, the New Mexico State Police said in a Twitter post. The extent of their injuries is unknown.
The driver and passengers are in custody, officials said, and state police are investigating the incident.
The parade is part of a days-long celebration of Native American culture and heritage, according to a news release on the event. This year, the event is celebrating its 100th anniversary, the release said.
Thursday night’s ceremonial parade was scheduled to begin at 7 p.m. local time in downtown Gallup, according to the event website.
This is a developing story and will be updated.