British police are holding a 53-year-old man over a collision that turned a joyous soccer celebration in Liverpool to tragedy and sent more than two dozen people to hospitals. The city’s mayor says four people are in very serious condition. Police said they are not treating Monday evening’s incident as terrorism and are not looking for other suspects. Detectives on Tuesday were piecing together how a minivan plowed into crowds. It happened after the players of Liverpool Football Club celebrated the Premier League championship with an open-topped bus parade. The North West Ambulance Service said a total of 47 people were injured, of whom 27 were taken to local hospitals.