Five people have been killed after a car drove into a Christmas parade in the US state of Wisconsin.
More than 40 people were injured in the incident, which happened in the city of Waukesha, home to around 72,000 people, at around 4.40pm local time on Sunday (10.40pm GMT).
Waukesha Police Chief Dan Thompson said a “person of interest” is in custody, but did not share any details of possible motivation.
None of the victims have been named – here’s everything we know so far.
What happened in Waukesha?
A red SUV sped through barricades and ploughed into the crowd of dancing people.
The incident was recorded by the city’s livestream and several bystanders’ phones.
One video shows the moment the SUV broke through the barricades and the sound of what appears to be several gunshots.
Mr Thompson said a Waukesha police officer fired his gun to try to stop the vehicle. No bystanders were injured by the gunfire, and Mr Thompson said he did not know if the driver was struck by the officer’s bullets.
Another video showed a woman screaming, “Oh my god!” repeatedly as a group of young dancers were hit by the vehicle.
A father talked of going “from one crumpled body to the other” in search of his daughter. Members of a “Dancing Grannies” club were among those hit.
The Milwaukee Dancing Grannies posted on its Facebook page that “members of the group and volunteers were impacted and we are waiting for word on their conditions”.
The group’s profile describes them as a “group of grannies that meet once a week to practice routines for summer and winter parades”.
A Catholic priest, multiple parishioners and Waukesha Catholic schoolchildren were among those injured, the Archdiocese of Milwaukee spokeswoman Sandra Peterson said.
Chris Germain, co-owner of the Aspire Dance Centre studio, had about 70 people in the parade ranging between the ages of two and 18.
Mr Germain, whose three-year-old daughter was in the parade, said he was driving at the head of their entry when he saw a maroon SUV that “just blazed right past us.”
A police officer ran past in chase. Mr Germain said he jumped out of his own SUV and gathered the girls who were with him to safety.
Then he walked forward to see the damage.
“There were small children laying all over the road, there were police officers and EMTs doing CPR on multiple members of the parade,” he said.
Angelito Tenorio, a West Allis alderman who is running for Wisconsin state treasurer, said he was watching the parade with his family when they saw the SUV come speeding into the area.
“Then we heard a loud bang,” he said. “And after that, we just heard deafening cries and screams from the crowd, from the people at the parade. And people started rushing, running away with tears in their eyes, crying.”
Attorney General Josh Kaul, the state’s top law enforcement officer, said: “What took place in Waukesha today is sickening, and I have every confidence that those responsible will be brought to justice.”
Waukesha has closed its public schools on Monday.
Additional reporting from agencies