Five people are now confirmed by police to have died in western Germany after a car was driven through a pedestrianised area in the city of Trier.
Police updated the earlier tally of four deaths, revealing in a tweet on Tuesday evening that a fifth person had been killed.
A middle-aged man is in custody and police do not suspect a political, religious or terrorist motive.
One of the victims was a nine-month-old baby. Two women aged 25 and 73, and a 45-year-old man, were also killed.
The baby’s mother is understood to be among 15 people with serious injuries in hospital.