Supported by A 53-year-old British man was detained, but the crash was not being treated as an act of terrorism, the police said. Prime Minister Keir Starmer described the scenes in Liverpool as “appalling.” By Michael D. ShearLizzie Dearden and Mark Walker Michael D. Shear and Lizzie Dearden reported from London. A driver slammed a vehicle into a crowd celebrating Liverpool’s championship soccer club in England on Monday, the police said, seriously wounding a child and an adult, sending dozens of others to the hospital and bringing chaos to a festive parade attended by hundreds of thousands of people. The crash was not being treated as an act of terrorism, the police said at a news conference Monday night. Earlier, video shared on social media shows a dark-color van or sport utility vehicle accelerating quickly into the crowd, leaving bodies on the ground. The video also shows people rushing to the victims. The Merseyside Police said in a statement that a “53-year-old white British man” from the Liverpool area had been detained after the vehicle stopped. The police added: “We would ask people not to speculate on the circumstances surrounding tonight’s incident on Water Street in Liverpool city centre. Extensive enquiries are ongoing to establish the circumstances leading up to the collision. We would ask people not to share distressing content online.” Keir Starmer, Britain’s prime minister, said on social media: “The scenes in Liverpool are appalling — my thoughts are with all those injured or affected. I want to thank the police and emergency services for their swift and ongoing response to this shocking incident. I’m being kept updated on developments and ask that we give the police the space they need to investigate.” The police said they were contacted about 6 p.m. Monday local time after reports that a car had hit the crowd. The episode drew a large response, video from the scene showed, with the vehicle surrounded by dozens of police officers and ambulances. Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times. Thank you for your patience while we verify access. Already a subscriber? Log in. Want all of The Times? Subscribe.