A car drove into a crowd of people in western Berlin on Wednesday, killing one person, mass-selling daily Bild reported.
A spokesperson for the German capital's fire service told Reuters around 30 people were injured.
"A man is believed to have driven into a group of people. It is not yet known whether it was an accident or a deliberate act," police said, adding that he was being held at the scene.
The incident happened near the popular Kurfuerstendamm shopping boulevard in the west of the German capital, Berlin police spokesman Martin Dams said.
Mass-selling daily Bild said the man had been driving a small Renault car.
Reuters TV showed a large deployment of fire service and ambulances at the scene, with rescue workers carrying empty stretchers, next to the war-ravaged Gedaechtniskirche church, one of Berlin’s best-known landmarks.
Berlin fire service spokesman Stefan Salzwedel, who confirmed the casualty figures, was not immediately able to provide further information on the victims.
The incident took place near the scene of a fatal attack on December 19, 2016, when Anis Amri, a failed Tunisian asylum seeker with Islamist links, hijacked a truck, killed the driver and then plowed it into a crowded western Berlin Christmas market, killing 11 more people and injuring dozens of others.