Five people have died and over 40 were injured after a car ploughed into a parade in Wisconsin, police say.
Footage posted online shows a red sports utility vehicle (SUV) driving through a Christmas parade in the city of Waukesha, west of Milwaukee, at around 16:40 local time (22:40 GMT).
Police chief Dan Thompson said it hit dozens of people including children.
One person is in custody. The incident did not appear to be an act of terrorism at this time, officials said.
The suspect appeared to have been fleeing another scene when he ran into people at the parade, a law enforcement official familiar with the early findings of the investigation told the BBC’s US partner CBS News