Germans on Saturday mourned both the victims and their shaken sense of security after a Saudi doctor intentionally drove into a Christmas market teeming with holiday shoppers, killing at least five people, including a small child, and wounding at least 200 others.
Authorities arrested a 50-year-old man at the site of the attack in Magdeburg on Friday evening and took him into custody for questioning. He has lived in Germany since 2006, practising medicine in Bernburg, about 40 kilometres (25 miles) south of Magdeburg, officials said.
The state governor, Reiner Haseloff, told reporters that the death toll rose to five from a previous figure of two and that more than 200 people in total were injured.
Chancellor Olaf Scholz said nearly 40 of them "are so seriously injured that we must be very worried about them."
Several German media outlets identified the suspect as Taleb A., withholding his last name in line with privacy laws, and reported that he was a specialist in psychiatry and psychotherapy.
Mourners lit candles and placed flowers outside a church near the market on the cold and gloomy day. Several people stopped and cried.
A Berlin church choir whose members witnessed a previous attack in 2016 sang Amazing Grace, a hymn about God's mercy, offering their prayers and solidarity with the victims.
There were still no answers Saturday as to what motivated the man to drive his black BMW into a crowd in the eastern German city.
Describing himself as a former Muslim, the suspect shared dozens of tweets and retweets daily focusing on anti-Islam themes, criticising the religion and congratulating Muslims who left the faith.
He also accused German authorities of failing to do enough to combat what he said was the "Islamism of Europe." Some described him as an activist who helped Saudi women flee their homeland. He has also voiced support for the far-right and anti-immigrant Alternative for Germany (AfD) party.
Haseloff said Friday that authorities believed the man acted alone.