Police were still puzzling over why the driver, whom they believe to be a Saudi man who posted anti-Islam views, smashed a rented SUV at high speed into a crowd of revelers, killing five and sowing chaos.

Abdulmohsen, a 50-year-old doctor from Saudi Arabia, had expressed anti-Islamic views and described himself as a Saudi dissident, an official said.

Police in Magdeburg, Germany, said Sunday that those who died were four women aged 45, 52, 67 and 75, as well as a 9-year-old boy.

Police in Magdeburg reported scuffles at a far-right demonstration attended by around 2,100 people on Saturday night, while other residents took part in somber remembrance events.

A driver plowed a car into a crowd of shoppers at a busy German Christmas market on Friday evening, killing at least four people and injuring at least 68 in a suspected deliberate attack. An extensive police operation is underway following the attack at the market in the German city of Magdeburg that happened at around 7 p.m. local time.

At least two people are dead and more were were injured Friday after a car plowed into a crowded Christmas market in the central German city of Magdeburg, local authorities said.

The suspect in the deadly car-ramming attack on a German Christmas market showed signs of mental illness, making the incident even harder to prevent, German Interior Minister Nancy Faeser said on Monday.

Germany's interior minister said on Monday it was still too soon to jump to any conclusions about the man suspected of driving his car into a Christmas market in Magdeburg and killing at least five people.

German security and intelligence chiefs faced questioning Monday about the car-ramming attack that killed five people and wounded more than 200 at a Christmas market 10 days ago.